Detailed SEO Extension vs Robots Exclusion Checker (2026): which should you pick?
As of Oct 23, 2026, Detailed SEO Extension and Robots Exclusion Checker share a 3.0 GPA, both are free, so the choice depends on which features you need.
Checked Oct 23, 2026 · graded Oct 23, 2026 by ToolGPA
They get the same grade on all five counts.
Price, platforms and features side by side. The table says where each price was read and when.
Detailed SEO Extension
Free Chrome and Firefox extension for one-click on-page SEO checks
Free
Robots Exclusion Checker
Free Chrome extension that flags robots rules blocking a page
Free
Which one is for you
Pick Detailed SEO Extension if
- Fits if you check titles, headings and schema on single pages and don't want to read the source
- Works for checking hreflang on a multi-language site, alternate by alternate
Look elsewhere if
- Skip it if you want search volumes, rankings or backlinks, as it has none of its own
- Too light for whole-site audits, since it inspects one page at a time
- Not for you if you browse in Safari or Edge, as only Chrome and Firefox are listed
- Watch out: the changelog's last entry is December 2024, though both stores show an update in 2026, and the interface is English only
Pick Robots Exclusion Checker if
- Fits if you need to know why a page isn't being crawled or indexed
- Works for checking at a glance whether a site blocks AI crawlers
Look elsewhere if
- Skip it if you're not on Chrome, as no other browser is named
- Too light for whole-site audits, since it reports on the URL open in the browser
- Not for you if you want the interface in a language beyond English, German, Spanish and French
- Watch out: the developer hasn't identified itself as a trader, so EU consumer rights don't apply
How we grade them
| 3.0GPADetailed SEO ExtensionVery good | 3.0GPARobots Exclusion CheckerVery good | |
|---|---|---|
| Value for money | AFree outright on Chrome and Firefox, and its page says there's no paid version and no upsells. Tags, headings, links, schema and hreflang all come at no cost. | AFree from the Chrome Web Store, with no account and no paid version listed. |
| Free plan and trial | AEvery feature is free, with no account, no plan to upgrade to and nothing held back. | AFree outright: all six checks, the user-agent switcher and link highlighting, with nothing to upgrade to. |
| Features | CTitle, meta description, meta robots and X-Robots-Tag, headings, link and image exports, schema, hreflang with return-link checks and People Also Ask extraction. The gap the listing names: no keyword volumes, rankings or backlink data of its own. | CRobots.txt rules highlighted, meta robots and X-Robots-Tag, canonical mismatch warnings, 14 AI bots from 6 companies, nofollow, ugc and sponsored links, and Googlebot or Bing user-agents. It does indexing checks fully, a smaller job, with no headings or search data. |
| Ease of use | BNo rating on record, but there's nothing to set up: install it, open a page, click the icon and the panel is there. | BNo rating on record, but nothing to set up: the icon turns red, amber or green on the next page you load. |
| Platforms and integrations | CChrome and Firefox extensions, so computers only, with no Safari or Edge version named. The Ahrefs, Semrush, Moz and Majestic links open those sites; no data is pulled in from them. | CChrome only, so computers only, with no Firefox, Safari or Edge version named and no integrations. |
| Best for | one-click page checks in Chrome or Firefox | finding what stops a page being indexed |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Detailed SEO Extension and Robots Exclusion Checker. How we grade
Price against what you get
Detailed SEO Extension has no paid plan and scores 2.3 out of 4 on features, ease of use and platforms. Robots Exclusion Checker has no paid plan and scores 2.3.
On this chart the two sit in the same place: the same score for the same starting price. Of the other SEO browser extensions on the chart, none scores higher than Detailed SEO Extension for less, and none scores higher than Robots Exclusion Checker for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Detailed SEO Extension also covers schema markup.
- Robots Exclusion Checker also covers AI search visibility.
In commonFree planBrowser extensionSite audit
At a glance
| Detailed SEO Extension | Robots Exclusion Checker | |
|---|---|---|
| Pricing | Free | Free |
| Starts at | Free | Free |
| Free plan | The whole extension is free on Chrome and Firefox; its page says there are no upsells and no paid version. | The whole extension is a free install from the Chrome Web Store, with no account and no paid version listed. |
| Free trial | None listed | None listed |
| Browser extension | ||
| Made by | Detailed | checkrobots.com |
| Price read from | detailed.com | chromewebstore.google.com |
| Checked | Oct 23, 2026 | Oct 23, 2026 |
Worth knowing
Detailed SEO Extension
- It inspects one page at a time and has no keyword volumes, rankings or backlink data of its own.
- It is listed for Chrome and Firefox only; the vendor names no Safari or Edge version.
- The changelog's latest entry is December 2024, though both stores show version 2.2.7 updated in 2026.
- The interface is in English only, according to the Chrome Web Store listing.
Robots Exclusion Checker
- It is listed for Chrome only; the store listing names no Firefox, Safari or Edge version.
- It reports on the URL open in the browser, one page at a time, rather than auditing a whole site.
- The developer has not identified itself as a trader, so EU consumer rights do not apply, as the store listing notes.
- The interface comes in English, German, Spanish and French only.
Key features
Detailed SEO Extension
- Page overview
- Shows the title tag, meta description, meta robots and X-Robots-Tag header for the page you are on, with a quick link to its sitemap.xml.
- Headings view
- Lists every heading tag indented by level, with a button that copies them all to the clipboard.
- Links and images export
- Exports all links on a page and shows whether each is nofollow or sponsored; image URLs can be downloaded as a CSV file.
- Schema and hreflang
- Shows a page's structured data markup and all its hreflang alternates, with status codes and a check that each alternate links back.
- People Also Ask extraction
- An option on the Advanced tab extracts People Also Ask questions from Google results, including several levels deep.
- Right-click shortcuts
- Open the current page or site in Ahrefs, Moz, Majestic, Semrush, Similarweb or Archive.org, or run a site: search, from the context menu.
Robots Exclusion Checker
- Robots.txt rule finder
- When an Allow or Disallow rule affects the current URL, it shows that rule and the full robots.txt with the rule highlighted.
- Meta robots and X-Robots-Tag
- Flags index, noindex, follow and nofollow directives in the HTML and in the HTTP header, and shows the full header with exclusions marked.
- AI bot check
- Checks robots.txt against 14 AI bots from 6 companies, covering training, search indexing and live browsing, and adds an AI label to the icon when any are blocked.
- Canonical mismatch warnings
- Reads canonical tags from the HTML head and the HTTP header and turns the icon amber when the canonical URL differs from the current one.
- Nofollow, UGC and sponsored links
- Optionally highlights links with those rel values on the page, in colors you choose; off by default on new installs.
- Search engine user-agents
- Simulate what Googlebot, Googlebot News, Bing or Yahoo may access, chosen in settings. 404 pages are flagged in red.
Plans
Detailed SEO Extension
Free$0
Every feature of the extension, free to install from the Chrome Web Store or Firefox Add-ons.
Robots Exclusion Checker
Free$0
All six checks, the user-agent switcher and link highlighting, free from the Chrome Web Store.
Common questions
Which is cheaper, Detailed SEO Extension or Robots Exclusion Checker?
As of Oct 23, 2026, both Detailed SEO Extension and Robots Exclusion Checker are free to use.
Which has a free plan, Detailed SEO Extension or Robots Exclusion Checker?
As of Oct 23, 2026, both Detailed SEO Extension and Robots Exclusion Checker have a free plan.
More comparisons
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- Detailed SEO Extension vs SEO META in 1 CLICK
- Detailed SEO Extension vs META SEO inspector
- Detailed SEO Extension vs SEO Pro Extension
- Detailed SEO Extension vs SEO Minion
- Robots Exclusion Checker vs SEOquake
- Robots Exclusion Checker vs META SEO inspector
- Robots Exclusion Checker vs NoFollow
- Robots Exclusion Checker vs Redirect Path
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.