Adam King (@agking) profile picture

Joint founder & Director at https://teapawt.net/t.co/fgH1Xfbubf | Creator of the JS SEO Checker Chrome Plugin

London, UK
Joined June 2009
Photo by Adam King (@agking)Photo by Adam King (@agking)Photo by Adam King (@agking)Photo by Adam King (@agking)Photo by Adam King (@agking)Photo by Adam King (@agking)Photo by Adam King (@agking)Photo by Adam King (@agking)Photo by Adam King (@agking)Photo by Adam King (@agking)
Introducing SEO JavaScript Checker - a Chrome extension, designed to compare the raw server HTML with the live, client-rendered DOM and highlight differences.
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What's wrong with this picture? Not sure if this is new or not, but take a look at this GSC screenshot. The x-axis is from Feb. 2025 to June 2025, but the date range skips April and May completely, and the resulting trend lines join March straight to June! @rustybrick
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It turns out that the Weekly and Monthly views show the missing data more cleanly (but still joins March to June) - personally, I think I'd prefer the trend going to zero during the period of missing data instead of joining the two months up. It would be more honest.
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This JS SEO plugin is me giving back to an industry that I've loved for over 20 years, and which has given me so much. #SEO #JavaScriptSEO #TechnicalSEO #ChromeExtensions #SearchEngineOptimization #SEOTools #WebsiteAudits #SiteHealth #Indexation teapawt.net/agking/status/19784236…
Introducing SEO JavaScript Checker - a Chrome extension, designed to compare the raw server HTML with the live, client-rendered DOM and highlight differences.
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If you like the SEO JS Checker, please help spread the word by liking and sharing the 1st post of this thread: teapawt.net/agking/status/19784236…
Introducing SEO JavaScript Checker - a Chrome extension, designed to compare the raw server HTML with the live, client-rendered DOM and highlight differences.
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What it does - Compares server vs. rendered HTML - Flags changed, added, or removed elements - Works on nearly any HTTPS page - Exports reports for QA or documentation - Lightweight, private, and built for real-world debugging - no dependencies, no data collection, no setup.
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It highlights EVERY difference in head tags, visible text and links so you can immediately see what changed after JavaScript ran. It’s awesome at debugging rendering parity issues and catching metadata regressions before they affect indexing or AI visibility.
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I got tired of spending ages trying to determine what Google and emerging AI models like ChatGPT, Perplexity and Gemini actually see, so I built SEO JS Checker, a Chrome extension that compares the raw server HTML with the live, client-rendered DOM.
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AI crawlers, particularly those associated with LLMs and AI-powered search engines, often encounter challenges with JS-heavy content. While advanced search engines like Google have made significant progress in rendering and understanding JS, many AI crawlers struggle.
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More sites than ever rely on JavaScript frameworks like React, Next.js, Shopify front-ends, complex tag managers, and they often rewrite key HTML. That’s fine for users, but it creates uncertainty for both search engines and AI crawlers about what your page really contains.
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Do we need oversight baked into E-E-A-T? E-E-A-T-O?
Google is talking about AI a lot - but what are they actually saying? Join Senior SEO Strategist Meg Benner as she dives into whether AI-generated content and E-E-A-T can actually live together in harmony ayi.ma/uyabq
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Adam King retweeted
Curious how much (or how little) coaching it takes to get ChatGPT to fool AI Detection tools? Join our very own Brandon Rickner on a journey to find out! ayi.ma/0pk4t
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This is an awesome update @screamingfrog! Well played! :-)
Announcing @screamingfrog SEO Spider 13.0 - screamingfrog.co.uk/seo-spid…. Update includes - 😱 Near Duplicate Content Analysis 🐸 Spelling & Grammar Checks 🕷️ Improved Link Data (Link Position, Path, Target) 🍻 Security Checks & loads more. Enjoy!
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While many are losing jobs and suffering due to #COVID19 & businesses are doing their best to offer support, @ThreeUK @ThreeUKSupport seem to just want to make even more profit by putting subscription rates up! #ShameOnYou! #PRFail
Due to the #COVID19 crisis people are spending more time at home, and brands have responded by shifting spend from offline media to online. How should your #ecommerce #strategy adapt? ayima.com/blog/the-impact-of…