SEO extensions show page and search-result data while you browse: on-page elements, metrics from the vendor's index and keyword volumes. Details are from each vendor's own pages.
Disclosure: we make SEO·AEO·GEO, and it's listed first because this is our page. Everything about the other tools comes from each vendor's own website, checked on 21 October 2026, with a link so you can verify it. Prices change; check before you buy.
How to choose
Fix the basics first. If a page can't be indexed, has the wrong canonical or hides its text behind JavaScript, keyword and backlink data won't help. A technical audit finds that in minutes.
Need keyword and competitor data? That needs a suite with its own database. Compare the free limits before paying; most suites show only a few results without a plan.
On WordPress? A plugin handles titles, sitemaps and schema, and the free versions cover most small sites.
An agency? Look for white-label reports and a per-client price that leaves room in your retainer.
Technical audit (can AI crawlers reach and read you)
A free one-page technical SEO audit that also covers AI search: indexability, canonical, titles, headings, sitemap, internal links, structured data and speed, plus whether Google, ChatGPT, Claude and Perplexity can crawl and read the page, with the exact fix for each issue.
Best for
A free, fast technical audit of a page for Google and AI search, with fixes you can hand to a developer
Starting price
Free audit; full report ₹499 (one-time); Pro ₹1,499/month; Agency ₹4,999/month
Free plan or trial
Yes: the full audit, every check's status and the top 3 fixes, no account
Engines
Checks access for ChatGPT search, Claude, Perplexity, Google AI Overviews/AI Mode, Bing/Copilot and 25 more crawlers
Agency / white-label
Yes: Agency ₹4,999/month (white-label reports, branded widget, lead capture)
Limits to know
Audits one page at a time; no keyword database, backlink index or rank tracking
Keyword Surfer is a free Chrome extension from Surfer that shows search volume, cost per click, estimated traffic and keyword ideas directly on Google's results page, for 70 countries.
Best for
free search volumes and keyword ideas without leaving Google
Starting price
Free
Free plan or trial
Yes. Surfer says it is "100% Free. Forever."
Agency / white-label
No
Limits to know
Chrome only; shows data on the results page rather than auditing your site
SEO META in 1 CLICK is a Chrome extension that shows a page's title and description with their lengths, canonical, meta robots, H1 to H6 outline, image alt counts, links, Open Graph and Twitter data, robots.txt and sitemap.
Best for
a one-click view of a page's meta tags and heading outline
Starting price
Free (no price shown on the Chrome Web Store listing)
Free plan or trial
Yes. The Chrome Web Store listing shows no price.
Agency / white-label
No
Limits to know
One page at a time; the listing was last updated on 31 August 2024
SEOquake is a free browser extension from Semrush that shows a page's title, meta description, headings, canonical and indexability, runs a page-level audit, overlays metrics on Google results and reports keyword density and links.
Best for
quick on-page and search-result metrics while you browse
Starting price
Free
Free plan or trial
Yes. Free; a free Semrush account adds metrics such as Authority Score.
Agency / white-label
No
Limits to know
Works on one page at a time in your browser; seoquake.com now redirects to a Backlinko page, so install it from the Chrome Web Store