Seo word part time jobs

...chance to contribute significantly to a project on a part-time or gig basis. Key Responsibilities: Implement and refine Zoho CRM strategies and solutions. Build, Implement and refine Zoho Campaigns strategies and solutions. Customize and configure the Zoho CRM to align with business objectives. Provide training and support to team members on Zoho CRM functionalities. Analyze CRM data to improve customer engagement strategies. Troubleshoot and resolve any issues related to Zoho CRM. Requirements: Demonstrated experience with Zoho CRM and Zoho Campaigns including customization and configuration. Strong analytical skills and problem-solving ability. Excellent communication and training capabilities. Ability to work independently and manage time effectively. Familia...

I am looking for a professional copywriter who can help me in improving my website's rankings with SEO optimized product descriptions. The target audience for these descriptions are young adults. Key requirements: - Creation of engaging, easy-to-read product descriptions - Incorporation of SEO strategies to improve website's rankings - Understanding of young adult target market Skills and experience required: - Proven track record in SEO content writing - Experience in writing for young adult target audience - Excellent understanding of SEO principles - Strong copywriting skills - Ability to deliver engaging and high-quality content

I need a professional to connect my OAK PoE camera with a Raspberry Pi 5. I have the camera working perfectly fine on my DELL computer. However, I'm unable to use the camera with my Raspberry Pi 5. This is what I've done so far. 1. I first installed the pip3 and Python 3 Virtual Environment by running. - sudo apt install -y python3-pip python3-virtualenv 2. I then created and activated the Virtual Environment by running. - python3 -m venv projectsenv - source projectsenv/bin/activate 3. Then I installed opencv while inside the virtual environment - pip3 install opencv-contrib-python 4. After that I installed the depthai dependencies for Linux (still in the environment) - sudo wget -qO- | bash 5. Then I installed depthai (still in the environment) - python3 -m pip instal...

I need a professional to connect my OAK PoE camera with a Raspberry Pi 5. I have the camera working perfectly fine on my DELL computer. However, I'm unable to use the camera with my Raspberry Pi 5. This is what I've done so far. 1. I first installed the pip3 and Python 3 Virtual Environment by running. - sudo apt install -y python3-pip python3-virtualenv 2. I then created and activated the Virtual Environment by running. - python3 -m venv projectsenv - source projectsenv/bin/activate 3. Then I installed opencv while inside the virtual environment - pip3 install opencv-contrib-python 4. After that I installed the depthai dependencies for Linux (still in the environment) - sudo wget -qO- | bash 5. Then I installed depthai (still in the environment) - python3 -m pip instal...

I'm looking for help in enhancing the security of our project, particularly through the modification of /phpmyadmin routes. Key Requirements: - Security Enhancement: I'm looking to change specific routes in /phpmyadmin to boost the overall security of our project. - Expertise in phpMyAdmin: As an essential part of this task, you should be well-versed in phpMyAdmin and comfortable navigating its routing system. Ideal Skills and Experience: - Proficient in phpMyAdmin: Expertise in working with phpMyAdmin is a must, as you'll be modifying routing within this platform. - Security-Focused: A strong understanding of security principles, particularly when it comes to web application security, would be highly beneficial. - Communication: Clear communication skills are ess...

Delete blank page in Word document and tell me HOW to do it. 10 dollars only

...in need of an experienced mobile app developer with proficiency in PayPal API integration. The app is intended for an adult audience and the key functionality will be payment processing. Ideal Skills: - Experience in cross-platform mobile app development (both Android and Apple) - Expertise in PayPal API - A clear understanding of secure payment processing - Code Review will be carried out as part of the testing process Expected Output: - A smooth, intuitive cross-platform app - Seamless and secure payment processing utilizing PayPal. Candidates should have a strong portfolio showcasing similar projects. If this sounds like you, please bid with your plan of action and expected timeline. The Project: There is a requirement to develop a piece of code that; 1. Retrieves the ...

Here is a brief of my requirement. What I want is when I am creating a collection page, the way I can actually sort the product is either through best selling item, product title, highest price or lowest price, new best oldest and manually. Now we have thousands of product in a collection at the moment hundreds of them. What we want to do is instead of the regular product filter which is available on Shopify, we want to have a custom one with the logic on the basis of either row as or basis on the conversion rate. So we can actually connect this with the Google sheet or we can actually have an identifier in terms of how the product would change their, how would product would look on the collection page in terms of where they are on the collection page basis of an identifier.

I'm looking for a VBA exper...Inventor. Key Requirements: - Automate part modeling in Autodesk Inventor - The parts to be modeled are intermediate mechanical components, such as gears and brackets - The VBA code should allow user input for customization of the parts, specifying dimensions and features Ideal Skills and Experience: - Proficient in VBA programming - Previous experience with Autodesk Inventor - Strong understanding of mechanical components and their modeling - Ability to incorporate user input into VBA code for part customization This project is perfect for someone who enjoys automating processes and has a good understanding of mechanical engineering principles. The efficiency and accuracy of the VBA code will be crucial in ensuring the successful automa...

I'm in need of an interior designer with experience in modern design aesthetics who can completely transform my living room and dining area. My preference is for a neutral color scheme with whites, grays and browns being the prominent tones. Key Elements include: - A medium sized and mpressive dining table,...rooms - Furry center rugs alluding to high comfort and sophistication. Electrical points and lighting points can be altered and changed to avhieve a vood view. Experience in residential interior design, particularly in modern style, is essential. Freelancers with a good eye for incorporating neutral tones in a modern design would be ideal for this job. I would love to see your previous work as part of your bid. Make my living space a comforting, inviting, and stylish ...

More details: What specific goals do you have for improving the SEO of your barber website and spa website? Increase website traffic, Improve search engine rankings, Boost online visibility What information should successful freelancers include in their application? Detailed project proposals Which are the primary keywords or key phrases that you want to target for your barber and spa websites? High volume and low competition keywords, Brand-related keywords, Service-specific keywords - Blogs - Lonk nbuilfing - UX DESiGN - HOME - LANDINGS PRODUCRTS - CHECKOUT - PR - FAST LOADING - Citation backlins

Productbrochure / Productcatalog Hello, we have technical Products here in Europe and search a solution for Productbrochure and Productcatalog as PDF output. I have worked before with Microsoft Publisher, but I search a solution for 2 Catalogs. First Catalog with small products and easy products with photos, details, part number, price for automatic publishing via a Excel File and the second Version is a Catalog which i must make with a software manuell/self, because very strong products, which are not possible to create via excel, only a catalog as information and .... have you a easy and good solution for us, that we can change weekly the products because we add every week 10-50 new products in our excel / erp / website and in the brochure than. But we need a easy software whic...

...managing advertising campaigns on both platforms. Experience with real estate advertising is a significant plus. - **Content Creation and Posting:** Your primary focus will be to create engaging content for our audience. This will include posting property listings on a daily basis, as well as keeping the page updated with relevant and interesting posts for our followers. - **Video Editing:** As part of the content creation, you should be able to edit videos that could be used for property walkthroughs, testimonials or any other relevant content. - **Client Page Management:** You will also be responsible for the management of customer pages. Ensuring queries are responded to in a timely manner and any issues are handled professionally. This is a dynamic role that requires a proac...

Design and implement one page website. The website shall have a design similar to the included "reference ". Please also notice the "reference " which contains a mockup of the top part of the website and the color scheme. The top menu contains links within the same page (anchors), so only one page, no sub pages. Notice that the hero area is a photo carousel consisting of multiple photo. The carousel must change the picture automatically every 3 seconds, but also have controls to change the picture with clicking. The photos to be used on the website are attached. Also the text to be used on the page is included. The implementation must work with any browser size, including mobile devices. The implementation must work with Chrome based browsers but also with la...

I urgently need an SEO expert who can help me with my project. The primary objectives are to: - Increase website traffic - Improve search engine rankings - Generate more leads The SEO strategy should be geared towards attracting both local and national customers to my website. Proven experience in achieving similar results is essential. The task is time-sensitive and I need someone who can start working on it immediately. A deep understanding of SEO tools and utilization of data-driven strategies will be crucial for success. If you can effectively drive traffic and improve rankings ASAP, then this project is for you.

For my project, real-time voltage levels tracked through an ATSAMD21 MCU will be crucial. I need someone who can develop firmware to transport this crucial A/D data to a host computer via USB in a raw format. This endeavour calls for: * Proficiency in crafting firmware for ATSAMD21 MCU * Proficient understanding of voltage/current monitoring systems including TI INA3211 i2c sensor * Ability to transport raw A/D data via USB * Experience in real-time data monitoring solutions. Your role would be to focus on developing a robust and efficient real-time monitoring system to track voltage levels and send this information in raw format to the host computer. Your expertise will ensure that accurate and reliable voltage info is readily available for further processing and...

I require a professional in SEO to enhance my website's visibility and overall performance. The main focus will be on on-page and off-page optimization, as well as conducting comprehensive keyword research and analysis. Key responsibilities: - Implement on-page and off-page optimization strategies to improve search engine rankings and increase website traffic. - Conduct in-depth keyword research to identify high-traffic, relevant terms. - Analyze and refine existing content to align with SEO best practices and maximize visibility. The urgency of the project requires the selected freelancer to be highly experienced, proactive, and capable of delivering results within a short timeframe. Previous success in boosting online sales through SEO is a definite advantage.

...search of a professional with expertise in managing comprehensive digital advertising campaigns. The key aspects of the job include: - Prioritizing platforms: The campaign should primarily focus on Display Ads, YouTube, TikTok, OTT devices, and Audio on Audacy. These platforms are integral to our target audience, and your experience with them is crucial. - Geofencing strategy: Geofencing is a key part of our advertising strategy. We want to target our ads specifically in the city and County 1. Your understanding of local advertising dynamics and experience with geofencing is highly desirable. - Targeted and effective advertising: The primary goal of this campaign is to boost our sales, parts, and services locally. I'm looking for someone who can craft compelling, engaging...

1 Month SEO On page SEO Off page SEO Backlinks work Suggestion

I'm seeking a talented graphic designer to create a hierarchy diagram for a document. The document design will be an integral part of my project and must be executed with precision. Work Required: - Create a visually engaging hierarchy diagram Ideal Skills: - Graphic design background with a focus on hierarchy diagrams and document design - Keen attention to detail - Ability to translate complex ideas into comprehensible visuals Experience: - Extensive experience in creating diagrams for professional documents will be preferred. Please include a sample of previous work in your proposal. This project requires a blending of technical accuracy and creative skills. If you have a good understanding of hierarchy diagrams and you're proficient in designing documents, th...

As a business struggling with SEO, my main objectives are to increase website traffic, elevate our search engine rankings, and enhance overall online visibility. - SEO Goals: Significant traffic growth, improved search engine positioning, and increased online exposure - SEO Status: Our current SEO status is fairly poor, an upturn is urgently needed - Target Audience: Our primary target audience is national. Freelancers with extensive experience in comprehensive SEO strategies, particularly those proficient in bringing websites from a poor SEO state to an excellently optimized one will be most suitable for this project. Your ability to achieve significant results within the national marketplace is paramount to the success of this project.

Due to time and resource constraints, I need to migrate a component written in php (symphony) to Golang. The part on github relating to services towards the DB (MongoDb) and the new REST APIs (written in Golang) to access for interfacing is already active. The system will only have to execute queries on MongoDb (via Service) and render in twig template. The repository layer and service and repository are already developed in golang and will be provided. As well as indications on the function to be translated into golang. GIT access will be via wireguard VPN on the development environment

I'm looking for an expert to optimize the SEO for my Amazon ads targeting Pet and Equine categories. I particularly need guidance on how best to specifically target these categories. My primary goal for the campaign is to improve sales conversions in this sector. Key tasks include: - Understanding Amazon's algorithm and applying relevant strategies - Researching effective keywords and implementing them effectively - Monitoring campaign performance and providing suggestion for improvements Ideally, you will have substantial experience with Amazon SEO and a proven track record of improving sales conversions. Experience with the Pets and Equine categories will be an added advantage.

About Us: We're a dynamic team operating in the healthcare sector, committed to leveraging data to enhance our services and support for medical professionals. Our focus is on identifying and connecting with newer medic...specific criteria, such as states and names. Strong communication skills to provide regular updates on progress and collaborate effectively with our team. Knowledge of healthcare data regulations and best practices is a plus. Why Work With Us: We offer an opportunity to work on a meaningful project in the healthcare sector, contributing to our mission of supporting medical professionals. You'll be part of a collaborative team environment where your expertise and contributions are valued. There's room for growth and innovation as we continue to evolve...

As part of this project, I'm looking for a detail-oriented and efficient Virtual Assistant to handle the role of data entry. Your tasks will involve sharing data details and converting screenshots. Skills and Experience: - Proficient in screenshot file conversion. - Strong data management abilities. - Excellent attention to detail. If you're good at handling data, and have a knack for file conversion, this job is for you.

Hello Maicol, Hope you are doing well. We will improve your website traffic and give you a better ranking in your desirable search will never be disappointed with our work We have completed a lot of projects, with a very good experience - Website Technical Audit - Keyword Research - SEO Strategy - Content Creation - On-Page SEO - Link Building - (Only Quality Links) - GA Goal Setup: Phone click, Email Click, Form Submission, etc. - Conversion tracking - Google Rankbrain Optimization - Monthly Marketing Reports Thanks Jassi Thakur

I need someone to create social media profile on FB and Insta, manage the social media handles, generate leads for business, run webinars. One part is managing social media handles. Another part is create leads. The target audience are small & medium scale businessmen who are looking for branding solutions, business consultancy, brand consultancy. Businessmen who wants to make their brands big and noticeable which will bring growth on business. More details: Which digital marketing channels are you currently using? Social media, Search engine optimization (SEO) What are your primary marketing goals? Generate leads, Drive website traffic Who is your target audience for your digital marketing efforts? B2B (business to business)

I need to assign a project related to the training of n. 1 employee who is part of my staff regarding software development with Angular language. The project involves assisting my junior developer for a maximum of 4 hours per week for a period of 4 months (total between 60 and 80 hours). Specifically, the sought-after figure will have to support my developer in case of problems related to writing the code relating to the development of our software called KAIZENCLOUD.

As part of my project, I require a thorough analysis of the Sequential Search algorithm. Key Requirements: - An understanding and calculation of the time complexity under all cases: worst, average, and best. - Assessment of the algorithm when working with all types of list: sorted, unsorted, and randomized. The ideal candidate should possess strong problem-solving abilities, excellent mathematical skills, and a deep knowledge of algorithm efficiency. Proficiency in the use of mathematical induction to prove the correctness of algorithms is highly desirable. Your task will revolve around the comprehensive evaluation of the Sequential Search algorithm, making this role perfect for those seeking to apply and grow their knowledge in computer science and algorithm analysis.

I'm urgently seeking a proficient PHP/MySQL developer to tackle several key tasks for my project. Although I chose to skip ...Country and city dropdowns Rebuy concept (Edit) Founder (Edit) how it works (Edit) FAQ (Edit) Tips and help (Edit) terms & conditions (Edit) Privacy Policy (Edit) Support page (Edit) contact form text (Edit) Banners -------------- 1) List all banners (image files) 2) Create new banner, upload image file and name it. (In phase 2 of this platform, this will be expanded a lot, but not in this part of the development) ID Verification -------------- 1) ID Verify: List all users with ID Verify pending 2) ID Verify: View single user's uploaded ID's with decline or approve API (Mobile developer) : ------------ Simple API web services, talk ...

...field, I'm looking for a skilled designer to create a mockup for a web app for instant insurance. The primary goal of this app is to provide insurance quotes in real-time and then buy them, hence it is crucial that the design is both professional and user-friendly. Key Requirements: - Design a comprehensive web app mockup that is intuitive and engaging for users - Implement real-time quote functionality in the mockup - Ensure the design is tailored towards individual insurance seekers, keeping their user experience in mind Ideal Skills and Experience: - Proficiency in wireframing and mockup tools - Understanding of real-time functionality and how to integrate it into the design - Strong UI/UX design skills, with a focus on user engagement and ease of use - Pr...

I'm seeking an experienced website developer to maintain a company we...to maintain a company website. Keeping the website up to date and work on SEO. NO ADS Key Job Details: - Ensuring seamless navigation structure - Implementation of effective SEO strategies Required Skills & Experience: - Proven experience in web development - Strong understanding of SEO principles - Portfolio showcasing corporate websites Specific SEO Goals: - Increasing website traffic - Improving search engine rankings Your expertise will play a pivotal role in creating an engaging, user-friendly website that also effectively increase our visibility online. Looking for a month to month service. Current SEO guy won't do and website work, like fixing indexing iss...

REUQUIRED PERSON TO BE BASED IN PHILIPPINES ONLY! Are you passionate about social med...Instagram, and TikTok- Be proficient in creating and managing paid advertising campaigns- Possess advanced skills in Photoshop and Illustrator for editing and creating visually appealing content- Be committed to long-term growth and willing to contribute innovative ideas to help our business thriveAs part of our team, you will have the opportunity to grow with us and receive increased wages and bonuses as we achieve our goals. If you are ready to take on this exciting challenge and be an integral part of our journey, we want to hear from you!Apply now and let's create something amazing together! ideally we would like someone who has worked on previous businesses that relate to the cl...

Need some one to improve rankings in google search and website traffic

I'm in need of an expert with knowledge and skills within the realm of Computer-Aided Design (CAD), specifically for developing a basic level mechanical part drawing. Its a onenoff part for a car steering wheel that also needs 3d printing Local to Warwick

...company. Here's what the project entails: - **Drug Development Details:** My company is currently working on three drugs - Drug A, Drug B, and Drug C. Each of these is still in the early stages of development and is expected to take more than three years to complete. Your valuation model should take into account this extended timeline and the associated risks. - **Data Availability and Analysis:** As part of this project, you'll have access to our clinical trial data. It's essential that you can effectively incorporate this data into the model to accurately reflect the potential value of these drugs once they hit the market. - **WACC Calculation and Ratio Analysis:** The model should also include the calculation of the Weighted Average Cost of Capital (WACC) and r...

My Client is looking for an experienced Full Stack PHP CI4 and Laravel developer to join our dynamic project team. Our project involves comprehensive backend development, efficient API integration, intricate database management, and crafting a frontend with a customizable layout that stands the test of u...optimization. - Experience in developing customizable and dynamic frontend designs. - Excellent problem-solving skills and attention to detail. This project requires a proactive developer passionate about creating efficient, scalable, and secure web applications. If you have a knack for perfection and a portfolio to prove your expertise, I am looking forward to discussing this project with you. Full time position mon to sat 9 am to 6 pm salary between 35k to 40k minimum experienc...

We're looking for a developer to add functionality to a Swift library Here's an explanation of what we need to do. We need to add this functionality (), to this Flutter package in the iOS part (), because we need to export the result of VNDocumentCameraViewController as a PDF with the text printed on it. Do you think you could do it, and how long would it take ? Please put it in your bid

I'm in need of an expert who can work on my site's SEO and Google Ads management. Key Points: - **SEO Enhancement**: My primary aim is to improve my website's search engine ranking. The current performance of my SEO is rated as 'poor', so this is a critical area of need. - **Google Ads Management**: In addition to SEO, I'd love to have a professional who can efficiently manage my Google Ads campaigns. Experience with this is a must. Ideal Candidate: - Proven track record of significantly improving SEO for websites with poor performance - Prior experience of managing Google Ads campaigns effectively - Strong analytical skills to optimize SEO and Ads for maximum visibility and engagement

...entry tasks on a part-time basis. Key Requirements: - Proficiency in data entry with experience in handling simple lists of information - Ability to work with custom software for data management - Strong attention to detail to ensure accuracy - Comfortable working on a part-time basis I'm open to discussing the specific software that will be used for this project, so if you have a preferred tool, please let me know. Your role will primarily involve managing this data efficiently and accurately. Ideal skills and experience: - Proven track record in data entry - Experience working with custom software (preferably for data management) - Ability to focus on tasks to ensure accuracy and efficiency - Excellent communication skills and ability to work in...

I'm seeking an SEO expert to enhance my website's performance. My goals are to increase organic traffic, improve keyword rankings, and boost website visibility. - The target audience for my website is international, so familiarity with global SEO strategies is essential. - My website is somewhat optimized but still requires significant improvement. - I'm offering $20 monthly for a part-time commitment to this project. The ideal candidate should have: - Proven experience in international SEO - A track record of increasing organic traffic - Expertise in improving keyword rankings - A good understanding of website visibility enhancement - Strong communication skills as you'll be working part-time with me on this projec...

In this project, I am seeking an Off-Page SEO expert with a proven track record of increasing organic traffic. The goal is to uplift the appeal of my website for a wider international audience. Ideal skills: - Proficiency in organic traffic growth strategies - Prior experience with Off-Page SEO targeting an international audience - Strong understanding and practical use of SEO tools - Excellent knowledge of link building strategies in international market Your role will involve: - Creating and implementing an effective Off-Page SEO strategy for an international audience - Regularly tracking, analyzing, and reporting progress Experience with similar projects and a portfolio showcasing successful traffic growth are a must for this role. Ongoing collaboration m...

I'm seeking an experienced content writer to create SEO-specific content directed at adult professionals to improve search engine rankings. - The successful freelancer should have experience with topic clusters and silo structures. - The aim is to specifically target a list of keywords I will provide. - Significant knowledge of search engine optimization strategies is essential. - A profound understanding of professional sectors and how to target content towards this audience is needed. In essence, you will employ best SEO practices to create content that will rank highly on search engines and attract the attention of professional adults. Content that not only ranks but also engages is my end goal. Let's create content that provides value and drives traffic.

...primary objective is to enhance the site's SEO performance, as well as make announcements relevant to the target audience. Key Project Details: - I'm looking to increase website traffic, improve search engine ranking, and enhance user engagement. This should be done through a combination of on-page and off-page SEO strategies. - Additionally, I need to distribute announcements that are relevant and appealing to professionals and businesses. This could include industry insights, event updates, or company news. Ideal Skills: - Proven experience in SEO for informational websites - Strong understanding of professional and business audience targeting - Excellent copywriting skills for creating engaging and relevant announcements - Solid knowledge of SEO...

I am facing an issue on my Windows system where the internet disconnects every time I connect to my OpenVPN. This issue is significantly impacting my ability to work remotely and access the resources I need. Key Points: - The issue started occurring when I began using OpenVPN. - I work on my system and the VPN is a critical part of my workflow. - The problem is specific to my Windows operating system. I am looking for a professional who has: - Profound experience with troubleshooting VPN connection issues, especially with OpenVPN. - Strong knowledge of Windows operating system networking and its interaction with VPNs. - Excellent communication skills and can guide me through the troubleshooting process in a clear and understandable way.

We're looking for multiple competent native English editors to trim content and help us improve English language usage across a large batch of tutorials. Starting with a paid trial. Please bid $20.

I'm looking for an expert in R programming to assist with data analysis and visualization. Your main tasks would include: - Employing R for data analysis. - Generating static reports and graphs from the data. A key part of this role will involve applying different data visualization techniques to ensure the data is communicated clearly and effectively. Skills and Experience: - Proficient in R programming. - Experienced in data analysis. - Skilled in static data visualization techniques. - Understanding of data communication principles. Please note, the complexity of the dataset is not yet determined, so adaptability and problem-solving skills are a big plus.

I'm seeking a dedicated, SEO-knowledgeable monthly content writer who is comfortable with the topic of card processing. They should be able to enhance my WordPress site with regular articles surrounding credit, debit, and mobile payment processing. Prior experience in these industries is a bonus. Key Responsibilities: - Composing and publishing SEO-optimized articles monthly. - Ensuring content quality and originality. - Keeping up-to-date with card processing market trends. Skills Required: - Exceptional writing skills. - SEO understanding. - Knowledge on card processing sector. Take note, my website utilizes PayPal as our preferred payment gateway. The content should occasionally mention this. Any previous experience with PayPal-related writing is greatly ap...

I'm in need of creating a logo for a web-application we're developing. The logo should be a simple one with a single color: rgb(40, 199, 111). We want an owl to be a main part of the logo. The concept that the logo should utilize includes: team collaboration, communication, wise approach. As a basis for the logo an owl-icon can be considered: So, it should be a simple logo, might

Project Start Date 18 April 2024 Project End Date 18 May 2024 Working Domain : Your keywords + On page + 400 quality Google Indexed backlinks monthly + Technical SEO + GA and GSC setup and Fix the issues + 4 article for backlink submission + 4 blog every month + GMB optimization Target For 1st month: Backlinks: 400 backlink *) Should be on google Indexed *) Min DA PA 40+ *) 90% should be Do Follow *) 90% should be Uniqueue Domain Total Keywords: 19 have current Position N/A After 1 month (25% keywords should br in Google SRP ) Working Keywords: Online Cake Birthday cake Buy cake online Birthday cake online Flower online Cake shop near me order birthday cake online flower bouquet online flower delivery in delhi gifts for boyfriend gifts for girls designer