Plerdy SEO Analyzer vs SerpWorx (2026): which should you pick?
As of Oct 23, 2026, Plerdy SEO Analyzer grades higher than SerpWorx: 3.0 against 1.6 out of 4.0.
Checked Oct 23, 2026 · graded Oct 23, 2026 by ToolGPA
Plerdy SEO Analyzer grades higher on value for money, the free plan and ease of use. They get the same grade on features and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
SerpWorx
Paid Chrome extension showing link and SEO metrics in Google results
Free trial · from $29.95/mo
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 SerpWorx if
- Fits if you size up the pages ranking for a keyword before writing for it
- Works for comparing Majestic, Moz and Semrush figures in one place
Look elsewhere if
- Pricey if you're one person, at $29.95 a month where most extensions here cost nothing
- Tight if you want to try it properly, as the free trial lasts 3 days
- Watch out: its own pricing page couldn't be read, so usage limits and any team plans are unconfirmed
- Skip it if you don't pay for Ahrefs, since the Ahrefs metrics need your own account
- Not for you if you're not on Chrome, as no Firefox version was found
How we grade them
| 3.0GPAPlerdy SEO AnalyzerVery good | 1.6GPASerpWorxWeak | |
|---|---|---|
| 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. | D$29.95 a month, per its Chrome Web Store listing, which is where this category's dearest tenth starts. 19 of the 22 tools here are free outright, and the Ahrefs figures still need a separate Ahrefs account. |
| Free plan and trial | AFree outright: the audit, score, AI suggestions, text analysis, link and image checks and timings, with nothing held back. | DNo free plan. The trial needs no card but lasts 3 days, under a week, and then it's $29.95 a month. |
| 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. | CMajestic Trust Flow, Moz Domain Authority and Spam Score, Semrush traffic, Ahrefs ratings, word and heading counts, keyword frequency, broken links and a mobile check. No title, meta or schema checks are on record, and the Ahrefs part needs your own account. |
| Ease of use | BNo rating on record, but nothing to set up: install it, open a page and click the icon for the audit. | CNo rating on record. It's a subscription to sign up for, and the Ahrefs figures only appear if you have your own Ahrefs account. |
| Platforms and integrations | CChrome only, so computers only, with no integrations listed. | CChrome only, so computers only, with no Firefox add-on found under its name. It pulls figures from Majestic, Moz, Ahrefs, Semrush and the Wayback Machine. |
| Best for | a scored on-page audit of one page | Majestic, Moz and Semrush figures on Google results |
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 SerpWorx. 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. SerpWorx starts at $29.95 a month and scores 2.0.
Plerdy SEO Analyzer scores higher and starts $29.95 a month lower. Of the other SEO browser extensions on the chart, none scores higher than Plerdy SEO Analyzer for less, and 20 score higher than SerpWorx 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 and schema markup.
- SerpWorx also covers backlink analysis.
In commonBrowser extensionSite auditPage speed
At a glance
| Plerdy SEO Analyzer | SerpWorx | |
|---|---|---|
| Pricing | Free | Free trial |
| Starts at | Free | $29.95 per month |
| Free plan | The extension is free; Plerdy's paid analytics plans are a separate product. | None |
| Free trial | None listed | 3-day free trial, no credit card needed |
| Browser extension | ||
| Made by | Plerdy | SerpWorx |
| Price read from | plerdy.com | chromewebstore.google.com |
| 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.
SerpWorx
- SerpWorx's own pricing page could not be read, so the price comes from its Chrome Web Store listing and plan limits are unconfirmed.
- The Ahrefs metrics need a separate Ahrefs account.
- It is listed for Chrome only; no Firefox add-on was found under its name.
- The free trial lasts 3 days, after which it is $29.95 a month.
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.
SerpWorx
- Metrics bar in search results
- Shows a bar of SEO metrics under every site in Google's results for the keyword you searched, so ranking pages can be compared side by side.
- Majestic and Moz metrics
- Trust Flow, Citation Flow and Topical Trust Flow from Majestic, and Domain Authority, Page Authority and Spam Score from Moz, with inbound link counts.
- Ahrefs and Semrush data
- Ahrefs URL Rating, Domain Rating, link counts and anchor text density, which need your own Ahrefs account, plus Semrush keyword visibility and monthly traffic.
- On-page checks
- Counts headings, outbound links and words, measures how often the searched phrase appears, checks for broken links and runs a mobile-friendly check.
- Site background
- Reports a domain's age from the Wayback Machine, where the site is hosted, the technology it is built with, indexed pages and Google page speed results.
- Works on any site
- The same metrics are available on any website you have open, not only on Google's results page.
Plans
Plerdy SEO Analyzer
Free$0
Every check in the extension, including the SEO score and AI tips.
SerpWorx
SerpWorx$29.95
per month
The single price the Chrome Web Store listing gives. Usage limits and any team plans are on a pricing page that could not be read.
Common questions
Which is cheaper, Plerdy SEO Analyzer or SerpWorx?
As of Oct 23, 2026, Plerdy SEO Analyzer is cheaper to start with: it is free, against $29.95 a month for SerpWorx. Plerdy SEO Analyzer is free, and SerpWorx starts at $29.95 per month.
Which has a free plan, Plerdy SEO Analyzer or SerpWorx?
As of Oct 23, 2026, only Plerdy SEO Analyzer has a free plan. SerpWorx does not, though it has a free trial.
More comparisons
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- SerpWorx vs SEOquake
- SerpWorx vs Detailed SEO Extension
- SerpWorx vs SEO Minion
- SerpWorx vs Keyword Surfer
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.