serp.ac – SEO Checker, SERP Rank & AI Visibility

On-page SEO, organic positions on Google and your brand in ChatGPT, Perplexity, Gemini & AI Mode answers. By serp.ac.

See how a page is built for search, where a site ranks on Google, and whether AI assistants recommend your brand — all from your browser. serp.ac SEO Inspector is a free on-page SEO checker with a rank overlay for Google results and a brand tracker for AI answers. Everything runs locally: no account, no limits, no tracking. ON-PAGE SEO CHECK Click the icon on any page to see its title and meta description (with length and truncation warnings), canonical and indexability, robots rules, heading structure, links, images without alt text, structured data with validation hints, social share previews and page speed measured in your browser. Trace redirect chains and find broken links on the page in one click, then copy or export the results. GOOGLE RESULTS OVERLAY • A position number next to every organic result, counted the way rank trackers count • Your domains and your competitors highlighted, with your position shown in a small toolbar • The questions in "People also ask" and the sites cited in the AI Overview, ready to copy or export • Re-open the same search for another country or language AI ANSWER TRACKER When you read an answer in a supported AI assistant, the extension highlights your brand and your competitors and shows whether you were mentioned, your position in the answer and whether your site is cited as a source. Answers are read on your screen only — nothing is stored or sent. MARKETING HELPERS Detect the main technologies a site uses, build campaign links with UTM parameters, and find a site's published contact details for outreach. WORKS WITH SERP.AC (OPTIONAL) Connect your serp.ac account with an API key to start tracking a keyword's rankings, check whether a page is indexed, add a purchased backlink to link monitoring, see notes on links you already track on a site, look up search volume, and track a question in AI assistants every week. On serp.ac, the extension can also read a page that blocks automated access, in a visible tab of your own browser, so you can compare it with yours. PRIVACY Page analysis runs locally when you click the icon. The extension has no analytics, ads or browsing-history collection. Data is sent to serp.ac only when you connect your account and use a serp.ac feature. Details: https://serp.ac/privacy#extension