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Inspect Canonical vs SEO Pro Extension (2026): which should you pick?

As of Oct 23, 2026, SEO Pro Extension grades higher than Inspect Canonical: 3.0 against 2.8 out of 4.0.

Checked Oct 23, 2026 · graded Oct 23, 2026 by ToolGPA

SEO Pro Extension grades higher on features. They get the same grade on value for money, the free plan, ease of use and platforms.

Price, platforms and features side by side. The table says where each price was read and when.

Inspect Canonical

Free Chrome extension that checks a page's canonical tag at a glance

Free

SEO Pro Extension

Free Chrome and Firefox extension for on-page SEO checks

Free

Which one is for you

Pick Inspect Canonical if

  • Fits if you check canonicals page by page while browsing a site
  • Works for developers confirming canonical tags after a template change

Look elsewhere if

  • Too light for on-page checks, as titles, headings and other tags need another extension
  • Skip it if you want a site-wide check, since it reports on one page and doesn't crawl
  • Not for you if you browse in Firefox, Safari or Edge, as it's listed for Chrome only
  • Watch out: the developer hasn't identified itself as a trader, so EU consumer rights don't apply

Pick SEO Pro Extension if

  • Fits if you size up a prospect's site in a few clicks during an audit
  • Works for checking whether a backlink on a page is followed

Look elsewhere if

  • Not for you if you want keyword, ranking or backlink data, as it has none
  • Watch out: Core Web Vitals are mobile field data only, and pages without enough Chrome data show site-wide figures or nothing
  • Too light for whole-site audits, since it checks one page at a time
  • Skip it if you browse in Safari or Edge, as only Chrome and Firefox are listed
  • Watch out: the store shows the last update as November 20, 2024, and the developer hasn't identified itself as a trader, so EU consumer rights don't apply

How we grade them

2.8GPAInspect CanonicalGood3.0GPASEO Pro ExtensionVery good
Value for money
AFree from the Chrome Web Store, which lists no in-app purchases, from Nick LeRoy Consulting.
AFree, and the vendor's FAQ says it needs no subscription and will never ask for payment; donations are optional.
Free plan and trial
AFree outright: all seven checks and the colour-coded status, with no account and nothing to upgrade to.
AFree outright: all seven tabs and every export, with nothing held back.
Features
DOne narrow function: the canonical tag and noindex, tested in seven steps with a link to the source or the canonical URL. Titles, headings and every other tag need another tool.
CTitle, description, canonical, robots, word count, mobile Core Web Vitals, status and redirects, a heading tree, links with nofollow marked, alt text, schema types and social preview, with CSV exports. The gap the listing names: no keyword, ranking or backlink data.
Ease of use
BNo rating on record, but nothing to set up: the icon turns green, amber or red on the page you open.
BNo rating on record, but nothing to set up: the icon itself flags noindex pages and canonicals pointing elsewhere.
Platforms and integrations
CChrome only, so computers only, with no integrations.
CChrome and Firefox, so computers only, with Chrome UX Report data the one thing it pulls in.
Best forchecking a page's canonical tag at a glanceon-page checks in seven tabs

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: Inspect Canonical and SEO Pro Extension. How we grade

Price against what you get

Inspect Canonical has no paid plan and scores 2.0 out of 4 on features, ease of use and platforms. SEO Pro Extension has no paid plan and scores 2.3.

SEO Pro Extension scores higher for the same starting price. Of the other SEO browser extensions on the chart, none scores higher than Inspect Canonical for less, and none scores higher than SEO Pro Extension for less.

Features, ease of use and platforms, averaged

C2.0B3.0A4.0Free$5$10$20$50More for lessCosts more, scores moreCosts less, scores lessCosts more, scores lessInspect CanonicalSEO Pro Extension

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
The full chart of SEO browser extensions, and the best at every price

Where they differ

  • SEO Pro Extension also covers page speed.
In commonFree planBrowser extensionSite auditSchema markup

At a glance

Inspect CanonicalSEO Pro Extension
PricingFreeFree
Starts atFreeFree
Free planFree to install from the Chrome Web Store, which lists no in-app purchases for it.The vendor's FAQ says the extension is 100% free, needs no subscription and will never ask for payment; donations are optional.
Free trialNone listedNone listed
Browser extension
Made byNick LeRoy Consulting LLCMarketingSyrup
Price read fromchromewebstore.google.commarketingsyrup.com
CheckedOct 23, 2026Oct 23, 2026

Worth knowing

Inspect Canonical

  • It checks the canonical tag and noindex only; titles, headings and other tags need another tool.
  • It reports on the page in front of you and does not crawl a site.
  • It is listed for Chrome only.
  • The developer has not identified itself as a trader, so EU consumer rights do not apply, as the store listing notes.

SEO Pro Extension

  • It checks one page at a time and has no keyword, ranking or backlink data.
  • Core Web Vitals are mobile field data only; pages without enough Chrome data show site-wide figures or nothing.
  • It is available for Chrome and Firefox only; the Chrome Web Store shows its last update as November 20, 2024.
  • The Chrome Web Store notes the developer has not identified itself as a trader, so EU consumer rights do not apply.

Key features

Inspect Canonical

Color-coded status
Green means the canonical points to the current URL, amber that it points elsewhere, and red that something is wrong.
Seven checks in order
Tests for a noindex robots tag, a canonical outside the head, no canonical, several canonicals, a missing href, a different URL, then a correct self-reference.
Noindex conflicts
Flags pages carrying a robots noindex tag, since the listing notes canonical tags are then ignored.
One click to the source
Each message links to the page source, or to the canonical URL when the tag points to another page.

SEO Pro Extension

Overview tab
Title, meta description, canonical, meta robots, language, word count and counts of headings, images and links, with links to robots.txt and the sitemap.
Core Web Vitals
Shows LCP, INP and CLS from Chrome's user experience data for mobile, falling back to whole-site figures when the page has none.
Status codes and redirects
The icon shows the page's HTTP status, and the Status tab shows redirect chains and how http/https and www versions are handled.
Headings, links and images
A color-coded heading tree, internal and external links with anchor text and nofollow highlighting, and image alt text, each exportable to CSV.
Schema tab
Lists the structured data types and entities on the page, including types such as Organization and Person that do not produce rich results.
Social preview
Shows the Open Graph image, title and description a page will use when shared on networks such as LinkedIn and X.

Plans

Inspect Canonical

  • Free$0

    All seven canonical checks with color-coded status, free from the Chrome Web Store.

SEO Pro Extension

  • Free$0

    All seven tabs and every export, free for Chrome and Firefox, with an optional donation link.

Common questions

Which is cheaper, Inspect Canonical or SEO Pro Extension?

As of Oct 23, 2026, both Inspect Canonical and SEO Pro Extension are free to use.

Which has a free plan, Inspect Canonical or SEO Pro Extension?

As of Oct 23, 2026, both Inspect Canonical and SEO Pro Extension have a free plan.

More comparisons

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.
How we review and grade