[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"cms-page:\u002Fseo\u002Fjavascript-website-seo":3},{"date":4,"date_gmt":4,"content":5,"coauthors":7,"class_list":9,"acf":15,"head_links":262,"breadcrumbs":263,"head":271},"2024-10-03T08:00:13",{"rendered":6},"",[8],164,[10,11,12,13,14],"post-59","page","type-page","status-publish","hentry",{"page_content_modules":16,"hero":257},[17,25,29,49,70,87,95,111,114,159,184,235,252],{"acf_fc_layout":18,"reduced":19,"top_overlap":20,"bottom_underlap":20,"disable_observer":-1,"style":-1,"layout":-1,"size":21,"container":22,"gutter":-1,"left_gutter":6,"position":23,"image":6,"image_width":24,"image_height":24,"alt":6},"banner",true,"small","11-col","outside-container","right",0,{"acf_fc_layout":26,"reduced":19,"top_overlap":20,"bottom_underlap":20,"disable_observer":-1,"heading":27,"content":28},"full_width_text","Be visible across LLMs and AIOs with JavaScript SEO","\u003Cp class=\"intro\">Without a JavaScript SEO specialist agency to support your business, you could easily overlook important considerations that have a detrimental impact on your site’s visibility in search engines and AI searches.\u003C\u002Fp>\n\u003Cp>JavaScript applications offer powerful functionalities, but when handled improperly, LLMs and search engine rendering technologies may not be able to see how helpful your content is to users. Our specialists can help to set your site up with JavaScript SEO and \u003Ca href=\"\u002Fgenerative-engine-optimisation-agency\u002F\">GEO services\u003C\u002Fa> for optimal visibility.\u003C\u002Fp>\n",{"acf_fc_layout":30,"reduced":19,"top_overlap":20,"bottom_underlap":20,"disable_observer":-1,"heading":31,"intro":32,"columns":33,"style":34,"layout":35,"grid_items":36},"linked_content_grid","JavaScript SEO services we offer","\u003Cp>Don’t let unoptimised JavaScript hurt your search rankings or AI visibility. Backed by decades of expertise, our technical team can help you audit existing code or implement new, SEO-friendly JavaScript solutions.\u003C\u002Fp>\n","2","dark","left-margin",[37,40,43,46],{"title":38,"content":39,"link":6},"We can help you diagnose JavaScript SEO issues","\u003Cp>Our team has audited the SEO impact of JavaScript for a wide range of clients, often as part of a \u003Ca href=\"\u002Fseo\u002Ftechnical-seo\u002F\">technical SEO\u003C\u002Fa> project. With expertise in almost any JavaScript SEO issues you will encounter, we are the right people to help you.\u003C\u002Fp>\n",{"title":41,"content":42,"link":6},"Provide guidance on new implementations","\u003Cp>The best solution is to enlist the help of a JavaScript SEO agency like Impression during the initial planning phase. We can advise you on the ideal approach and work closely with your team to ensure a smooth implementation.\u003C\u002Fp>\n",{"title":44,"content":45,"link":6},"We liaise directly with your developers","\u003Cp>Although Impression does not offer in-house web development, we have a strong network and can recommend a suitable partner. Beyond this, our specialists can also liaise with developers on your behalf throughout the project.\u003C\u002Fp>\n",{"title":47,"content":48,"link":6},"Get bespoke project or monthly reporting ","\u003Cp>With any JavaScript SEO work, it’s vital that you see a clear return on your investment. That’s where our reporting comes in: we’ll design a bespoke dashboard to showcase how your site’s visibility improves over time.\u003C\u002Fp>\n",{"acf_fc_layout":50,"reduced":19,"top_overlap":51,"bottom_underlap":51,"disable_observer":-1,"style":52,"layout":35,"testimonials":53},"testimonials","none","light",[54,60,65],{"quote":55,"logo":56,"logo_width":57,"logo_height":57,"author":58,"byline":59},"\u003Cp>Thank you to the wider Impression team for being so great. You are by far one of the strongest agencies we work with beyond just results, you have really set the bar with ways of working\u003C\u002Fp>\n","https:\u002F\u002Fimages.impression.co.uk\u002F2022\u002F07\u002FClarins.jpg?auto=compress%2Cformat&fit=crop&h=640&q=90&w=640","640","The Ecommerce Team","Clarins",{"quote":61,"logo":62,"logo_width":57,"logo_height":57,"author":63,"byline":64},"\u003Cp>Impression are a cut above the rest in the way they communicate, strategise and implement their work and the results speak for themselves. \u003C\u002Fp>\n","https:\u002F\u002Fimages.impression.co.uk\u002F2025\u002F05\u002FQueensmith.png?auto=compress%2Cformat&fit=crop&h=640&q=90&w=640","Sam Nobes","Brand Director, Queensmith",{"quote":66,"logo":67,"logo_width":57,"logo_height":57,"author":68,"byline":69},"\u003Cp>Very happy with what Impression are doing for us. Over delivering and very easy to work with.\u003C\u002Fp>\n","https:\u002F\u002Fimages.impression.co.uk\u002F2021\u002F07\u002FovkOCzdy-Vaillant.jpg?auto=compress%2Cformat&fit=crop&h=640&q=90&w=640","Stuart Kelly","Vaillant",{"acf_fc_layout":71,"reduced":19,"top_overlap":51,"bottom_underlap":72,"disable_observer":-1,"style":73,"layout":74,"heading":75,"intro":76,"cta_text":77,"cta_link":78,"columns":33,"show_steps":79,"grid_items":80},"large_column_text","large","yellow","content_grid","Why JavaScript websites require specialist SEO","\u003Cp>Our JavaScript SEO services ensure search engines can properly render, index, and rank all of your content to drive organic traffic and business growth.\u003C\u002Fp>\n\u003Cp>Whether you are running a single-page app (SPA) or a headless setup built on React, Vue, or Angular, our technical team identifies rendering bottlenecks and implements framework-aligned fixes to get your pages indexed fast.\u003C\u002Fp>\n","Get in touch","\u002Fget-in-touch\u002F",false,[81,84],{"text":82,"title":83},"\u003Cp>JavaScript SEO is different to traditional SEO because search engines don’t read JavaScript in the same way that they read and parse HTML. The actual content, internal links, and metadata are only generated after executing the JS files. This is great for speeding up and enhancing the user experience, but it can cause problems for search engines and LLMs that might defer or skip pages that use heavy rendering.\u003C\u002Fp>\n","The problem to solve for search visibility",{"text":85,"title":86},"\u003Cp>Applying SEO fixes after a website launch or substantial code deployment adds complexity to your codebase and creates friction between marketing and development goals.\u003C\u002Fp>\n\u003Cp>Working with a \u003Ca href=\"\u002Fseo\u002Ftechnical-seo\u002F\">technical SEO\u003C\u002Fa> team upfront that speaks your developers’ language ensures everybody is moving towards the same goal: improved organic performance and excellent user experience. \u003C\u002Fp>\n","The problem for developers",{"acf_fc_layout":18,"reduced":19,"top_overlap":51,"bottom_underlap":51,"disable_observer":-1,"style":-1,"layout":-1,"size":88,"container":89,"gutter":-1,"left_gutter":90,"position":6,"image":91,"image_width":92,"image_height":93,"alt":94},"full","container","gutter","https:\u002F\u002Fimages.impression.co.uk\u002F2022\u002F06\u002Fjonathan-1-scaled.jpg?auto=compress%2Cformat&fit=crop&h=870&q=90&rect=0%2C352%2C3500%2C1057&w=2880",2880,870,"jonathan-1",{"acf_fc_layout":30,"reduced":19,"top_overlap":51,"bottom_underlap":51,"disable_observer":-1,"heading":96,"intro":97,"columns":33,"style":52,"layout":35,"grid_items":98},"How we help make your website more visible with JavaScript","\u003Cp>Beyond core architectural fixes, we also resolve complex runtime issues such as hydration mismatches that silently destroy search performance.\u003C\u002Fp>\n",[99,102,105,108],{"title":100,"content":101,"link":6},"Discovery","\u003Cp>We perform a comprehensive audit of how search engine rendering pipelines and AI retrieval engines digest your JavaScript, and provide a prioritised list of issues affecting your website for your development team to review. \u003C\u002Fp>\n",{"title":103,"content":104,"link":6},"Developer collaboration","\u003Cp>We talk to your developers and write tickets in their preferred language. Gherkin, Markdown or standard User Stories? No problem. \u003C\u002Fp>\n\u003Cp> \u003C\u002Fp>\n",{"title":106,"content":107,"link":6},"Testing and implementation","\u003Cp>We use specialised rendering tools to pull and locally test your website to validate your codebase improvements and ensure crawlers can read the content before your team starts deployment.\u003C\u002Fp>\n",{"title":109,"content":110,"link":6},"Ongoing monitoring and support","\u003Cp>We perform post-live checks and monitor essential metrics to ensure performance improves as we anticipate.\u003C\u002Fp>\n",{"acf_fc_layout":26,"reduced":19,"top_overlap":20,"bottom_underlap":20,"disable_observer":-1,"heading":112,"content":113},"What to do if hydration impacts your SEO performance ","\u003Cp class=\"intro\">Hydration links static server HTML with interactive JavaScript. If they mismatch, the browser breaks.\u003C\u002Fp>\n\u003Cp>This causes content flashes, poor Core Web Vitals scores, and hides fundamental SEO requirements, such as canonical tags hidden from search crawlers. \u003C\u002Fp>\n\u003Cp>If you’re experiencing hydration issues, here is an example of how we have worked with clients before:\u003C\u002Fp>\n\u003Cul>\n\u003Cli aria-level=\"1\">\u003Cb>Monitor Issues: \u003C\u002Fb>Because standard automated SEO tools fail to detect hydration errors, our team establishes custom monitoring protocols to catch and report issues as soon as they happen.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cul>\n\u003Cli aria-level=\"1\">\u003Cb>Isolate Mismatches:\u003C\u002Fb> We run local environment tests to pinpoint exact code discrepancies between server output and browser execution.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cul>\n\u003Cli aria-level=\"1\">\u003Cb>Propose Solutions:\u003C\u002Fb> We support your development team by testing fixes in a staging environment and running post-live tests to ensure a seamless deployment and complete issue resolution.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp> \u003C\u002Fp>\n",{"acf_fc_layout":115,"reduced":19,"top_overlap":20,"bottom_underlap":20,"disable_observer":-1,"heading":116,"cta_text":117,"cta_link":118,"case_studies":119},"case_studies","SEO case studies","See our work","\u002Four-work\u002F",[120,135,147],{"id":121,"title":122,"industries":123,"services":126,"clientName":59,"clientLogo":128,"clientLogoWidth":129,"clientLogoHeight":129,"colour":130,"fontColour":34,"image":131,"imageWidth":132,"imageHeight":133,"to":134},15676,"SEO strategy supports long term growth",[124,125],"Luxury & Beauty","Retail",[127],"SEO","https:\u002F\u002Fimages.impression.co.uk\u002F2022\u002F02\u002FzFAbqsVC-Clarins.svg",200,"#f7e7e6","https:\u002F\u002Fimages.impression.co.uk\u002F2023\u002F03\u002FClarins2.png?auto=compress%2Cformat&fit=crop&h=1000&q=90&w=1892",768,458,"\u002Four-work\u002Fclarins\u002F",{"id":136,"title":137,"industries":138,"services":140,"clientName":141,"clientLogo":142,"clientLogoWidth":129,"clientLogoHeight":143,"colour":144,"fontColour":34,"image":145,"imageWidth":132,"imageHeight":133,"to":146},965,"SEO strategy paints the perfect picture for online marketplace for artists",[139,125],"Home Improvement",[127],"Rise Art","https:\u002F\u002Fimages.impression.co.uk\u002F2021\u002F03\u002FRise-Art.svg",53,"#f4f2f1","https:\u002F\u002Fimages.impression.co.uk\u002F2025\u002F03\u002FRise-Art-1.png?auto=compress%2Cformat&fit=crop&h=1000&q=90&w=1892","\u002Four-work\u002Frise-art\u002F",{"id":148,"title":149,"industries":150,"services":152,"clientName":153,"clientLogo":154,"clientLogoWidth":129,"clientLogoHeight":155,"colour":156,"fontColour":52,"image":157,"imageWidth":132,"imageHeight":133,"to":158},1352,"B2B website sees 121% increase in number of indexed URLs",[151],"B2B",[127],"EMIS","https:\u002F\u002Fimages.impression.co.uk\u002F2021\u002F04\u002FEMIS.svg",51,"#1b4869","https:\u002F\u002Fimages.impression.co.uk\u002F2025\u002F03\u002FEMIS.png?auto=compress%2Cformat&fit=crop&h=1000&q=90&w=1892","\u002Four-work\u002Femis-seo\u002F",{"acf_fc_layout":160,"reduced":19,"top_overlap":20,"bottom_underlap":20,"disable_observer":-1,"heading":161,"faqs":162},"faqs","JavaScript SEO FAQs",[163,166,169,172,175,178,181],{"title":164,"text":165},"What is JavaScript SEO?","\u003Cp>JavaScript SEO is the area of technical SEO concerned with the optimisation of pages that use the JavaScript programming language. In practice, it involves identifying and resolving issues associated with search engines’ inability to render and process JavaScript effectively, which may otherwise lead to reduced visibility for the affected pages.\u003C\u002Fp>\n",{"title":167,"text":168},"Why is JavaScript SEO important?","\u003Cp>JavaScript offers dynamic, interactive elements to your website which can significantly improve the user’s experience. However, if used incorrectly, it can have negative effects such as slow loading of on-page elements or issues with search engines being unable to render (and therefore rank) content. JavaScript SEO ensures that JavaScript is configured correctly and your website is visible to search engines.\u003C\u002Fp>\n",{"title":170,"text":171},"Does my website need JavaScript SEO services?","\u003Cp>Not all websites require a dedicated strategy when it comes to JavaScript SEO. If you’re using a headless CMS, JavaScript ecommerce setup, or bespoke web application to drive your website, you will likely benefit from JavaScript SEO services.\u003C\u002Fp>\n\u003Cp>Unsure if JavaScript SEO is required in your case? Speak to our team today.\u003C\u002Fp>\n",{"title":173,"text":174},"Do I need an agency for JavaScript SEO?","\u003Cp>JavaScript SEO takes time and expertise. If not done correctly, your website could continue to see a loss in visibility and valuable traffic. A reputable, professional agency like Impression can work with you to carry out an in depth JavaScript SEO audit to uncover and rectify issues on your website, helping it perform optimally.\u003C\u002Fp>\n",{"title":176,"text":177},"Why choose Impression as your JavaScript SEO consultants?","\u003Cp>Impression is an independent, owner-operated team of digital specialists. We’re at the forefront of industry innovation, always developing new and better ways of achieving organic success internally and sharing knowledge with the digital marketing community externally. The team is made up of strategists and specialists, allowing us to provide the perfect combination of skills for your company’s needs.\u003C\u002Fp>\n",{"title":179,"text":180},"Is my website’s JavaScript stopping my website from appearing in LLMs like ChatGPT and Claude?","\u003Cp>Yes, it is possible your website’s JavaScript is stopping your website from appearing in LLMs like ChatGPT, Claude, and Perplexity if your category copy, internal links, or prices are loading through client-side rendering. Since these AI search models only scan the raw initial HTML sent directly from your server, if your website is built dynamically via scripts, the LLM will see a blank page. \u003C\u002Fp>\n",{"title":182,"text":183},"How does JavaScript SEO impact core web vitals?","\u003Cp>A website’s core web vitals are important to the customer experience and can often deter users if they are too slow. That’s why it’s important to monitor your website’s response times through the three main core web vitals: Interaction to Next Paint (INP), Largest Contentful Paint (LCP), and Cumulative Layout Shift (CLS). \u003C\u002Fp>\n\u003Cp>JavaScript can play a heavy role in all of these metrics, potentially slowing your website through reliance on render-blocking requests. Impression is well positioned with developers to make sure JavaScript doesn’t negatively impact your website, and your core web vitals stay quick.\u003C\u002Fp>\n",{"acf_fc_layout":185,"reduced":19,"top_overlap":20,"bottom_underlap":20,"disable_observer":-1,"heading":186,"cta_text":187,"cta_link":188,"items":189},"related_module","JavaScript SEO resources","See all articles","\u002Fblog\u002F",[190,205,221],{"type_key":191,"title":192,"excerpt":193,"to":194,"postedAt":195,"readingTime":196,"image":197,"authors":198,"category":202},"post","Bing vs Google: Search Engine Comparison 2026","\u003Cp>In the Bing vs Google debate, many would point to the widespread popularity of Google – the world’s largest search engine – as evidence that users prefer it to its closest rival. Figures suggest that Google has 1 billion daily active users compared to Bing’s 100 million. Yet whilst Google continues to dominate the global […]\u003C\u002Fp>\n","\u002Fblog\u002Fbing-differ-google\u002F","2026-06-11T16:15:35",31,"https:\u002F\u002Fimages.impression.co.uk\u002F2022\u002F10\u002FBing-logo.jpg?auto=compress%2Cformat&fit=crop&h=300&q=90&w=750",[199],{"name":200,"image":201},"Jonathan Theuring","https:\u002F\u002Fimages.impression.co.uk\u002F2021\u002F05\u002F6bhGbuWP-Jonathan-Theuring.png?auto=compress&fit=crop&fm=jpg&h=150&q=80&w=150&bg=CFE6F9",{"to":203,"name":204},"\u002Fblog\u002Fcategory\u002Fdigital-marketing\u002F","Digital Marketing",{"type_key":191,"title":206,"excerpt":207,"to":208,"postedAt":209,"readingTime":210,"image":211,"authors":212,"category":219},"The complete JavaScript SEO guide","\u003Cp>In our complete JavaScript SEO Guide, we will uncover the important elements of JavaScript (also known as JS) that SEOs need to know about. We’ll talk about how Google crawls and indexes JavaScript, why it benefits both users as well as SEOs and most importantly, the best practices you should follow to make your JavaScript […]\u003C\u002Fp>\n","\u002Fblog\u002Fjavascript-seo-guide\u002F","2025-03-31T15:46:11",28,"https:\u002F\u002Fimages.impression.co.uk\u002F2023\u002F11\u002Fgabriel-heinzer-g5jpH62pwes-unsplash.jpg?auto=compress%2Cformat&fit=crop&h=300&q=90&w=750",[213,216],{"name":214,"image":215},"Chris Rogers","https:\u002F\u002Fimages.impression.co.uk\u002F2023\u002F07\u002FChris-R.png?auto=compress&fit=crop&fm=jpg&h=150&q=80&w=150&bg=CFE6F9",{"name":217,"image":218},"Louisa Holman","https:\u002F\u002Fimages.impression.co.uk\u002F2025\u002F05\u002FLouisa-Holman.png?auto=compress&fit=crop&fm=jpg&h=150&q=80&w=150&bg=CFE6F9",{"to":220,"name":127},"\u002Fblog\u002Fcategory\u002Fseo\u002F",{"type_key":191,"title":222,"excerpt":223,"to":224,"postedAt":225,"readingTime":226,"image":227,"authors":228,"category":232},"The Ultimate JavaScript SEO Glossary","\u003Cp>In order to fully understand the vocabulary and components behind JavaScript SEO, we’ve compiled a helpful list of definitions that you can refer to in the future. This glossary covers key fundamental terminology, as well as advanced JavaScript SEO phrases to aid in increasing your understanding of this. Asynchronous JavaScript and XML (AJAX) A programming […]\u003C\u002Fp>\n","\u002Fblog\u002Fjavascript-seo-glossary\u002F","2025-04-01T10:25:32",7,"https:\u002F\u002Fimages.impression.co.uk\u002F2021\u002F07\u002F4HJE495m-050720211625508635_JS-SEO-Glossary-scaled.jpg?auto=compress%2Cformat&fit=crop&h=300&q=90&w=750",[229],{"name":230,"image":231},"Aaron Dicks","https:\u002F\u002Fimages.impression.co.uk\u002F2023\u002F10\u002FAaron-Dicks2.png?auto=compress&fit=crop&fm=jpg&h=150&q=80&w=150&bg=CFE6F9",{"to":233,"name":234},"\u002Fblog\u002Fcategory\u002Ftechnical-seo\u002F","Technical SEO",{"acf_fc_layout":236,"reduced":19,"top_overlap":51,"bottom_underlap":51,"disable_observer":-1,"heading":237,"style":238,"cta_link":239,"cta_text":240,"services":241},"related_services","Related services","blue","\u002Fdigital-marketing\u002F","See all digital marketing services",[242,245,248],{"title":127,"link":243,"description":244},"\u002Fseo\u002F","Improving your search rankings and increasing organic traffic depends on a wide range of factors. Let our expert team help you grow online.",{"title":234,"link":246,"description":247},"\u002Fseo\u002Ftechnical-seo\u002F","The goal of technical SEO is to make sure that all your important pages can be found by search engines. It's the foundation of SEO success.",{"title":249,"link":250,"description":251},"Digital Experience","\u002Fdigital-experience\u002F","From conversion rate optimisation (CRO) to behavioural science, we help to improve your site’s digital experience and generate more revenue.",{"acf_fc_layout":253,"reduced":19,"top_overlap":51,"bottom_underlap":51,"disable_observer":-1,"heading":254,"title":255,"intro":256},"form_cta","Find out what we can do for your business","Talk to an expert","\u003Cp>Fill out the form, give us a call or drop us an email. We look forward to hearing from you.\u003C\u002Fp>\n",{"type":258,"style":34,"image":79,"background_video_hd":79,"background_video_sd":79,"title":259,"heading":260,"intro":261,"award_logos":79,"button_text":6,"button_link":6},"standard","JavaScript SEO Agency","JavaScript SEO: Full Search Visibility for Headless Websites and more","\u003Cp>If you’re using a headless CMS, a JavaScript ecommerce setup, or a bespoke web application to drive your website, then you are investing in incredible flexibility and user experience. Our JavaScript SEO services bridge any technical gaps to ensure search engines and LLMs can crawl and index your content seamlessly.\u003C\u002Fp>\n",[],[264,267,268],{"path":265,"name":266},"\u002F","Home",{"path":243,"name":127},{"path":269,"name":270},null,"JavaScript SEO",{"title":272,"script":273,"meta":409,"link":452},"JavaScript SEO Agency & Services | Impression",[274],{"type":275,"key":276,"innerHTML":277},"application\u002Fld+json","yoast-json-ld",{"@context":278,"@graph":279},"https:\u002F\u002Fschema.org",[280,291,303,315,382],{"@type":281,"@id":282,"url":282,"name":272,"isPartOf":283,"datePublished":285,"dateModified":286,"description":287,"breadcrumb":288,"inLanguage":290},"WebPage","https:\u002F\u002Fwww.impressiondigital.com\u002Fseo\u002Fjavascript-website-seo\u002F",{"@id":284},"https:\u002F\u002Fwww.impressiondigital.com\u002F#website","2024-10-03T08:00:13+00:00","2026-09-09T15:36:21+00:00","Our JavaScript SEO services ensure your content is visible to search engines and AI alike. Ensure your JavaScript is properly implemented today.",{"@id":289},"https:\u002F\u002Fwww.impressiondigital.com\u002Fseo\u002Fjavascript-website-seo\u002F#breadcrumb","en",{"@type":292,"@id":289,"itemListElement":293},"BreadcrumbList",[294,298,301],{"@type":295,"position":296,"name":266,"item":297},"ListItem",1,"https:\u002F\u002Fwww.impressiondigital.com\u002F",{"@type":295,"position":299,"name":127,"item":300},2,"https:\u002F\u002Fwww.impressiondigital.com\u002Fseo\u002F",{"@type":295,"position":302,"name":270},3,{"@type":304,"@id":284,"url":297,"name":305,"description":6,"publisher":306,"inLanguage":308,"potentialAction":309},"WebSite","Impression",{"@id":307},"https:\u002F\u002Fwww.impressiondigital.com\u002F#organization","en-GB",{"@type":310,"target":311,"query-input":314},"SearchAction",{"@type":312,"urlTemplate":313},"EntryPoint","https:\u002F\u002Fwww.impressiondigital.com\u002Fsearch?q={search_term_string}","required name=search_term_string",{"@type":316,"@id":307,"name":305,"url":297,"logo":317,"image":323,"sameAs":324,"@context":328,"email":329,"foundingDate":330,"legalName":331,"vatID":332,"description":333,"telephone":334,"address":335,"location":342,"areaServed":375},"Organization",{"@type":318,"inLanguage":308,"@id":319,"url":320,"contentUrl":320,"width":321,"height":322,"caption":305},"ImageObject","https:\u002F\u002Fwww.impressiondigital.com\u002F#\u002Fschema\u002Flogo\u002Fimage\u002F","https:\u002F\u002Fcdn.impression.co.uk\u002F2021\u002F06\u002FA5LuTDrq-Impression_Wordmark.png",920,176,"https:\u002F\u002Fcdn.impression.co.uk\u002F2021\u002F04\u002FFAVxDeOS-Nottingham.jpg",[325,326,327],"https:\u002F\u002Fwww.linkedin.com\u002Fcompany\u002Fimpression-digital-limited","https:\u002F\u002Fwww.facebook.com\u002Fimpression\u002F","https:\u002F\u002Fwww.instagram.com\u002Fimpressiontalk\u002F","https:\u002F\u002Fwww.schema.org\u002F","hello@impressiondigital.com","2012-11-07","Impression Digital Limited","GB186363774","Impression is an award-winning digital marketing agency based in the UK and USA. We offer SEO agency, PPC agency, Digital PR agency and Analytics services to companies of all sizes across the UK, North America, Europe and beyond. 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In practice, it involves identifying and resolving issues associated with search engines’ inability to render and process JavaScript effectively, which may otherwise lead to reduced visibility for the affected pages.\u003C\u002Fp>",{"@type":386,"name":167,"acceptedAnswer":391},{"@type":388,"text":392},"\u003Cp>JavaScript offers dynamic, interactive elements to your website which can significantly improve the user’s experience. However, if used incorrectly, it can have negative effects such as slow loading of on-page elements or issues with search engines being unable to render (and therefore rank) content. JavaScript SEO ensures that JavaScript is configured correctly and your website is visible to search engines.\u003C\u002Fp>",{"@type":386,"name":170,"acceptedAnswer":394},{"@type":388,"text":395},"\u003Cp>Not all websites require a dedicated strategy when it comes to JavaScript SEO. If you’re using a headless CMS, JavaScript ecommerce setup, or bespoke web application to drive your website, you will likely benefit from JavaScript SEO services.\u003C\u002Fp>\n\u003Cp>Unsure if JavaScript SEO is required in your case? Speak to our team today.\u003C\u002Fp>",{"@type":386,"name":173,"acceptedAnswer":397},{"@type":388,"text":398},"\u003Cp>JavaScript SEO takes time and expertise. If not done correctly, your website could continue to see a loss in visibility and valuable traffic. A reputable, professional agency like Impression can work with you to carry out an in depth JavaScript SEO audit to uncover and rectify issues on your website, helping it perform optimally.\u003C\u002Fp>",{"@type":386,"name":176,"acceptedAnswer":400},{"@type":388,"text":401},"\u003Cp>Impression is an independent, owner-operated team of digital specialists. We’re at the forefront of industry innovation, always developing new and better ways of achieving organic success internally and sharing knowledge with the digital marketing community externally. The team is made up of strategists and specialists, allowing us to provide the perfect combination of skills for your company’s needs.\u003C\u002Fp>",{"@type":386,"name":179,"acceptedAnswer":403},{"@type":388,"text":404},"\u003Cp>Yes, it is possible your website’s JavaScript is stopping your website from appearing in LLMs like ChatGPT, Claude, and Perplexity if your category copy, internal links, or prices are loading through client-side rendering. Since these AI search models only scan the raw initial HTML sent directly from your server, if your website is built dynamically via scripts, the LLM will see a blank page. \u003C\u002Fp>",{"@type":386,"name":182,"acceptedAnswer":406},{"@type":388,"text":407},"\u003Cp>A website’s core web vitals are important to the customer experience and can often deter users if they are too slow. That’s why it’s important to monitor your website’s response times through the three main core web vitals: Interaction to Next Paint (INP), Largest Contentful Paint (LCP), and Cumulative Layout Shift (CLS). \u003C\u002Fp>\n\u003Cp>JavaScript can play a heavy role in all of these metrics, potentially slowing your website through reliance on render-blocking requests. Impression is well positioned with developers to make sure JavaScript doesn’t negatively impact your website, and your core web vitals stay quick.\u003C\u002Fp>","https:\u002F\u002Fwww.impressiondigital.com\u002Fseo\u002Fjavascript-website-seo\u002F#faqpage",[410,412,415,418,421,423,425,427,429,432,434,437,440,443,446,449],{"name":411,"content":287},"description",{"name":413,"content":414},"robots","index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1",{"property":416,"content":417},"og:locale","en_GB",{"property":419,"content":420},"og:type","article",{"property":422,"content":272},"og:title",{"property":424,"content":287},"og:description",{"property":426,"content":282},"og:url",{"property":428,"content":305},"og:site_name",{"property":430,"content":431},"article:publisher","https:\u002F\u002Fwww.facebook.com\u002Fimpression",{"property":433,"content":286},"article:modified_time",{"property":435,"content":436},"og:image","https:\u002F\u002Fimages.impression.co.uk\u002F2021\u002F06\u002FABFPXguH-Opengraph-BLUE.jpg?auto=compress%2Cformat&q=90",{"property":438,"content":439},"og:image:width",1200,{"property":441,"content":442},"og:image:height",630,{"property":444,"content":445},"og:image:type","image\u002Fjpeg",{"name":447,"content":448},"twitter:card","summary_large_image",{"name":450,"content":451},"twitter:site","@impressiontalk",[]]