Turk SEM : On Page SEO Checker

Description

On-page SEO checker for the page you are on: title, meta tags, headings, links, images, schema. Runs fully in your browser. On Page SEO Checker reads the page you have open and reports its on-page SEO in a side panel, right next to the page. Click the toolbar icon and the analysis is ready in the same second. No account, no sign-in, no server of ours in the middle. Most checkers hand you a list of tags and leave the reading to you. This one answers the question you actually came with: will this page be indexed, and if not, which signal is holding it back? And when you want it fixed rather than explained, one button hands the whole thing to your AI coding assistant. HOW IT WORKS 1) Open any page and click the toolbar icon. 2) The side panel opens and 53 checks run inside your browser, on the page exactly as your browser rendered it. 3) Eleven tabs fill in: Summary, Headings, Links, Images, Social, Schema, hreflang, Content, Speed, Robots / AI, Render diff. 4) Switch an overlay on and the findings are drawn on the page itself. 5) Press "Copy for AI" and paste the result into Claude Code, Cursor or Copilot. 6) Keep browsing that tab. When the page changes the panel reads the new one and says so, and the address at the top of the report changes with it. You never have to wonder which page the numbers belong to. IT HANDS THE FINDINGS TO YOUR AI CODING ASSISTANT - One click copies a task document to your clipboard. Paste it into Claude Code, Cursor or Copilot and the agent starts fixing instead of asking you what it is looking at. - It carries what an agent needs and nothing else: the exact URL, the observed values word for word (the actual title, its pixel width, the actual counts), the rule each one breaks, and where in the document it sits. - It names the technology the page runs on, because the same missing tag is a different fix in Next.js, in WordPress and in static HTML. When the page cannot be placed with confidence it says so instead of guessing. - It says which signals JavaScript adds after load, which changes the fix completely and which no other extension can tell your agent. - It says what could NOT be read, so the agent never "fixes" a problem that was never measured. - Passing checks, the score and every marketing sentence are left out. A shorter document is a better one. - You can read it before you send it: the panel shows the document under the button. WHAT IT MEASURES - One indexability verdict, in a single sentence. meta robots, X-Robots-Tag, robots.txt, canonical and hreflang are weighed in the order Google applies them, and the contradictions are named out loud. The classic case: a noindex on a path that robots.txt blocks. Google never downloads the page, so it never reads the noindex, and the page stays listed. - The gap between the source HTML and the rendered DOM. Title, canonical, meta robots, the H1 sequence and the hreflang set stand side by side, so you see what JavaScript added or changed after the first response. - Visibility to AI crawlers: whether the site publishes an llms.txt, plus a matrix of eight bots (GPTBot, ClaudeBot, Google-Extended, PerplexityBot, CCBot and more) read straight from robots.txt. - Findings drawn on the page you are looking at: the heading outline, images with no alt attribute (kept apart from a deliberate alt=""), nofollow / sponsored / ugc links, vague anchor text, and the largest contentful element. - The classics, in full: title and description measured in both characters and pixels, a search snippet preview, the heading tree, internal and external links with their rel breakdown, alt text coverage, Open Graph and Twitter Card previews, JSON-LD blocks with their rich result eligibility, hreflang tags with the self reference and x-default verdicts, word count, readability and keyword density. - Speed, measured in the tab by the browser's own APIs: LCP, CLS, INP, FCP, TTFB, DOM milestones and transfer sizes. WHY IN THE BROWSER - The analysis runs where the page already is. Nothing is uploaded, nothing waits in a queue, there is no page limit and no daily quota. - What gets analyzed is the page your browser rendered, not the HTML a server fetches again without running JavaScript. On a modern site those two are rarely the same page, and this extension shows you the gap instead of covering it. - It works on pages a remote service cannot reach: a staging site, an intranet, a page behind a login, a development server on your own machine. - Anything that could not be measured is left empty and says why. Nothing is estimated to fill a gap. DATA AND PRIVACY - Nothing is collected. No account, no sign-in, no analytics script, no tracking. - Not one request goes to a Turk SEM server. The only requests are the ones your own browser makes to the site you are inspecting: its robots.txt, its llms.txt, a HEAD request and the page's own source HTML. - Those four are also the only requests the extension ever makes. They leave from a worker with no document of its own, so a site cannot use a preload header in its answer to make the panel fetch a third party. - The extension works only in the tab whose icon you clicked, and only after that click. It is granted no site permission when you install it, and there is no background content script; while it sits idle it sees nothing. - If you want it to keep reading one particular site without clicking again, a button in the panel asks for that one site by name and tells you what it means before you press it. The same button takes the permission back, and nothing is granted until you press it. - Those request results stay in your browser's session memory for ten minutes and are wiped when you close the browser. - Runs in Chrome and Edge (Chrome 116 or later). Learn more: https://www.turksem.com/en/onpage-seo-checker

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