Plerdy SEO Analyzer vs Website SEO Checker (2026): which should you pick?
As of Oct 23, 2026, Plerdy SEO Analyzer and Website SEO 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.
Website SEO Checker
Sitechecker's free Chrome extension for on-page SEO checks
Free
Which one is for you
Pick Plerdy SEO Analyzer if
- Fits if you want a page's tags, readability and keyword use checked before you publish it
- Works for developers looking for slow scripts, styles and images on a single page
Look elsewhere if
- Too light for whole-site audits, as daily site checks and Search Console alerts are Plerdy's separate SEO Checker
- Skip it if you want search volumes, rankings or backlinks, as none are on record
- 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 Website SEO Checker if
- Fits if you check a page's tags, indexing rules and hreflang without opening its source
- Works for Sitechecker users who want a page's Search Console clicks and queries beside it
Look elsewhere if
- Too light for whole-site audits, as it checks one page and site crawls are a separate Sitechecker product
- Tight if you won't make a Sitechecker account, since Search Console figures and monitoring need one
- 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
How we grade them
| 3.0GPAPlerdy SEO AnalyzerVery good | 3.0GPAWebsite SEO CheckerVery good | |
|---|---|---|
| Value for money | AFree from Plerdy, with every check in the extension, the 0 to 100 score and the AI tips included. Plerdy's paid analytics plans are a separate product. | AFree from Sitechecker, with no paid tier for the extension and no sign-up for the on-page checks. |
| Free plan and trial | AFree outright: the audit, score, AI suggestions, text analysis, link and image checks and timings, with nothing held back. | AFree outright: every on-page check works with no account. Search Console figures and change monitoring need a Sitechecker login, and the listing doesn't say whether a free account covers them. |
| Features | CTitle, description, H1, robots, canonical and hreflang, a 0 to 100 score with AI tips, readability and keyword share, links, alt text, Open Graph, schema, load timings and technology detection. The gap the listing names: one page at a time, with site audits a separate product. | CStatus code, title, description, canonical, robots rules, headings, keyword density, links with follow status, image alt text, hreflang, schema and mobile and desktop speed. The gap the listing names: one page at a time, with site crawls a separate product. |
| Ease of use | BNo rating on record, but nothing to set up: install it, open a page and click the icon for the audit. | BNo rating on record, but nothing to set up for the page checks: install it and open the panel on any page, with no sign-up. |
| Platforms and integrations | CChrome only, so computers only, with no integrations listed. | CChrome only, so computers only. It reads Search Console and Google Analytics 4 data through a Sitechecker account, and nothing else is listed. |
| Best for | a scored on-page audit of one page | on-page checks with your Search Console figures |
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: Plerdy SEO Analyzer and Website SEO Checker. How we grade
Price against what you get
Plerdy SEO Analyzer has no paid plan and scores 2.3 out of 4 on features, ease of use and platforms. Website SEO 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 Plerdy SEO Analyzer for less, and none scores higher than Website SEO 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
- Plerdy SEO Analyzer also covers content optimization.
In commonFree planBrowser extensionSite auditSchema markupPage speed
At a glance
| Plerdy SEO Analyzer | Website SEO Checker | |
|---|---|---|
| Pricing | Free | Free |
| Starts at | Free | Free |
| Free plan | The extension is free; Plerdy's paid analytics plans are a separate product. | Free to install and use; Search Console insights and issue monitoring need a Sitechecker account with Search Console connected. |
| Free trial | None listed | None listed |
| Browser extension | ||
| Made by | Plerdy | Cyber Circus Limited |
| Price read from | plerdy.com | sitechecker.pro |
| Checked | Oct 23, 2026 | Oct 23, 2026 |
Worth knowing
Plerdy SEO Analyzer
- It audits the page in front of you; daily site audits and Search Console alerts are part of Plerdy's separate SEO Checker.
- It is listed for Chrome only.
- The Chrome Web Store notes the developer has not identified itself as a trader, so EU consumer rights do not apply.
Website SEO Checker
- It checks one page at a time; whole-site crawls are a separate product on the Sitechecker platform.
- Search Console insights and issue monitoring work only when logged in to a Sitechecker account.
- It is listed for Chrome only.
- The Chrome Web Store notes the developer has not identified itself as a trader, so EU consumer rights do not apply.
Key features
Plerdy SEO Analyzer
- On-page audit and SEO score
- Checks title, description, H1, robots, canonical and hreflang tags, then rates the page from 0 to 100 and lists what to fix.
- AI suggestions
- Gives AI-generated tips with examples for meta tags, headings, keyword placement, readability and internal links, plus E-E-A-T and AEO checks.
- Text and keyword analysis
- Counts words and characters, keyword and stop-word share, uniqueness, sentence length and Flesch reading ease; click a keyword to highlight it on the page.
- Links, images and headings
- Reports dofollow, nofollow and duplicate links with their anchors, flags images with no alt text, and maps the H1 to H6 structure.
- Open Graph and schema markup
- Shows Open Graph and X (Twitter) card tags and the structured data a page carries, to check social previews and rich results.
- Performance and technologies
- Lists load time, DNS, TCP, TTFB and DOM timings, flags JS, CSS and image files slower than 300 ms, and detects analytics tools, pixels, CMS and frameworks.
Website SEO Checker
- On-page overview
- Shows URL structure, status code, page size, title, description and H1, canonical tag, and indexing rules from meta robots, X-Robots-Tag and robots.txt.
- Content analysis
- Lists and highlights the H1 to H6 headings, counts words and characters, and gives keyword density for one, two and three-word phrases and the text-to-code ratio.
- Links and images
- Sorts links into internal, external and subdomain with dofollow or nofollow status, anchor text and HTTP codes, and flags images missing alt text or broken.
- Hreflang and structured data
- Checks hreflang codes and return links for international sites and lists the Schema.org types and properties found on the page.
- Page speed
- Measures loading speed on mobile and desktop and points to the elements slowing the page down.
- Search Console insights and monitoring
- With a connected account, shows clicks, impressions, CTR, position and top queries over 7 to 90 days, indexing status, and changes to the page over time.
Plans
Plerdy SEO Analyzer
Free$0
Every check in the extension, including the SEO score and AI tips.
Website SEO Checker
Free$0
Every on-page check with no sign-up; Search Console data and monitoring appear once you log in to Sitechecker.
Common questions
Which is cheaper, Plerdy SEO Analyzer or Website SEO Checker?
As of Oct 23, 2026, both Plerdy SEO Analyzer and Website SEO Checker are free to use.
Which has a free plan, Plerdy SEO Analyzer or Website SEO Checker?
As of Oct 23, 2026, both Plerdy SEO Analyzer and Website SEO Checker have a free plan.
More comparisons
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- Plerdy SEO Analyzer vs Detailed SEO Extension
- Plerdy SEO Analyzer vs SEO META in 1 CLICK
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- Website SEO Checker vs SEOquake
- Website SEO Checker vs Detailed SEO Extension
- Website SEO Checker vs SEO META in 1 CLICK
- Website SEO Checker vs Sitechecker
- Website SEO Checker vs SEO Pro Extension
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.