Chrome SEO extensions: which two to install, and what each one is fastest at

A Chrome SEO extension puts the page's own markup one click away: the title tag, the meta description, the meta robots value, the canonical, the headings in order, the schema, the links, and in some cases live metrics from a paid platform. Two of them cover almost everything a working day needs. The Detailed SEO Extension is the fastest way to read a single page's markup and schema, and SEOquake is the one that annotates a whole page of search results. Install those two first, then add a third only when you have a job the first two do not cover.

This page covers picking between the extensions and the checks each one is fastest at. For SEOquake panel by panel, see our SEOquake guide. For the heavier tools that crawl an entire site, see SEO audit tools.

The shortlist, as listed on the Chrome Web Store

All figures below are from each extension's Chrome Web Store listing, checked 9 October 2026. The store rounds its user counts, so read them as scale rather than as exact installs.

Extension	Publisher	Listed users	Rating	Version and last update
SEOquake: On-Page SEO Checker	Semrush Inc.	1,000,000	4.5	4.2.2, 1 October 2026
Detailed SEO Extension	Ahrefs Pte Ltd	600,000	4.9 from 233 ratings	2.2.7, 2 June 2026
Keyword Surfer	Surfer	600,000	4.2	6.5.1, 29 January 2026
Ahrefs SEO Toolbar	Ahrefs Pte Ltd	400,000	4.4 from 556 ratings	3.2.13, 15 September 2026
SEO Minion	Akash Mansukhani	200,000	4.0 from 796 ratings	3.20, 22 February 2026
META SEO inspector	Not named on the listing	200,000	4.4 from 628 ratings	3.11.2, 6 October 2026
SEO Pro Extension	Not named on the listing	100,000	4.8 from 81 ratings	2.5, 20 November 2024

One column on that table is worth more than the rest: the last update date. An extension that reads page markup keeps working for years, but Chrome changes its extension platform, and a tool updated within the last few months is the one to trust with your browser.

Match the extension to the job

• Reading one page's markup and schema, fast. Detailed SEO Extension. Its store listing describes pulling back the title tag, meta description and meta robots tag on whatever page you are on, which is exactly the job, and it reads the structured data on the page too. This is the one to open when you want to know what a page is telling search engines.
• Annotating a whole page of search results. SEOquake. Its listing describes running audits, checking technical issues, analysing links and keyword density, and showing Semrush metrics as you browse and search. The bar it adds under each result is what makes a competitive scan quick.
• Seeing search volume while you search. Keyword Surfer, which its listing describes as generating keyword ideas and showing search volumes directly in Google search results. Useful for a first read on a query, and a number to confirm in a planning tool before you build anything on it.
• Link and traffic metrics on any page. Ahrefs SEO Toolbar, described on its listing as a toolkit for on page, keyword research and link analysis on any webpage. The metric depth depends on your Ahrefs account.
• Checking every meta tag on a page, including the unusual ones. META SEO inspector, which its listing describes as exploring what is hidden behind any web page and checking a site's HTML. It is the one that finds the tag the others skip.
• SERP previews and bulk link checks. SEO Minion, whose listing describes on page analysis, broken link checking and SERP preview.

How many to install

Two, with a third for a specific need. Every extension you add costs you browser memory, and several of them inject a toolbar into search results, so three of them running at once makes Google unreadable. A practical setup:

• Always on: one page inspector, usually Detailed SEO Extension, because it only does anything when you click it.
• On when you need it: SEOquake, with the SERP overlay switched on only while you are doing competitive work. Turn it off for the rest of the week.
• Specialist, enabled on demand: whatever covers your one extra job, enabled from the extensions menu for the task and disabled afterwards.

The permissions question, answered properly

Any extension that reads the page you are on asks to read site data, which is what makes it work. Three habits keep that reasonable:

• Check the publisher on the store listing before installing. Several of the extensions above are published by well known SEO platforms, which is a straightforward accountability trail.
• Set site access to "on click" rather than "on all sites" for anything that does not need to run continuously. Chrome offers this per extension in its settings, and it means the extension reads a page only when you ask it to.
• Keep a separate Chrome profile for work browsing if you install several. It limits what any extension sees and keeps your personal sessions out of it.

The ten second page check

This is the sequence worth building into a habit. On any page, open your page inspector and read, in this order:

• Meta robots. A noindex here explains most mysteries about a page not appearing in search.
• Canonical. Pointing at itself is normal. Pointing somewhere else is a decision somebody made, and worth understanding.
• Title and meta description. Does the title answer the query, and is the description written rather than generated from the first sentence?
• Headings in order. One h1, then a logical structure. A page with six h1s or none has a template problem.
• Schema. Which types are present, and whether the main entity of the page is actually described. See what schema markup changes.
• Internal links. How many links on the page, and how many point deeper into the site rather than out of it.

Six checks, ten seconds, and it catches the majority of single page problems. The findings an extension cannot give you are the ones that only appear across thousands of URLs, which is where a crawler takes over.

Asked and answered: Chrome SEO extensions

Which Chrome SEO extension is best?

For reading a single page, Detailed SEO Extension. For working across a page of search results, SEOquake. Those two cover most daily work, and the right third one depends on whether your extra job is keyword volume, link metrics or meta tag depth.

Are these extensions free?

The extensions listed above are free to install from the Chrome Web Store. Some of them show richer metrics when you are signed in to the publisher's paid platform, and the free install still gives you the page markup and structure.

Do SEO extensions slow Chrome down?

The ones that activate only when clicked have very little effect. The ones that inject a toolbar into every search result do more work on every page load. Set site access to on click for anything you do not need running all the time, and keep the installed set small.

Do they work in Edge, Brave or Firefox?

Chromium browsers such as Edge and Brave install Chrome Web Store extensions directly. For Firefox, check the publisher's own add on listing, because availability differs by extension.

Can an extension replace a site crawler?

An extension inspects the page in front of you. A crawler inspects every page and finds the patterns: the template that lost its canonical, the section nothing links to, the thousand pages carrying the same title. Use the extension for investigation and a crawler for coverage, starting with the technical SEO checklist.

Which extension shows search volume?

Keyword Surfer shows volumes alongside Google results, and SEOquake shows Semrush metrics as you search. Treat an in browser number as a first read and confirm it in a planning tool before you commit a page to it.

The ten second check has an eleventh

The ten second page check covers titles, headings, indexability and schema. Give it one more second: open an assistant and ask the question the page should answer. The extensions show how a page is built, and they cannot show whether it is used. If the reply names you, note the source. If it names someone else, open their page and compare it with yours line by line. AI Knows Us does this at volume.