Seolyzer review (2026): is it worth it?
French SEO crawler and real-time server log analyzer
Seolyzer report card
Fair · out of 4.0 · graded Oct 23, 2026
Best for live Googlebot activity from server logs
Seolyzer joins a crawler with real-time server log analysis and Search Console data, so you see which pages Googlebot crawls, ignores or never finds, and its API has no call limits. There's no published price, only a demo booking. It's sold to businesses only, and cancelling takes a registered letter a month before renewal.
Who Seolyzer is for
- Fits if you run a large French or European site and want Googlebot's activity live
- Works for data teams pulling SEO data into their own dashboards
Who Seolyzer is not for
- Not for you if you want a price before a demo, as none is published
- Skip it if you're buying for yourself, since its terms cover business customers only
- Watch out: subscriptions renew on their own and must be cancelled by registered letter a month ahead
- Tight if you can't connect your server logs, which the log analysis needs
Why Seolyzer gets a 2.0
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- CValue for moneyNo price is published. The old pricing page is gone and the site offers only a demo booking, so the cost comes out on a sales call, in euros, before tax.
- FFree plan and trialNothing free on record: no free plan and no trial, just a demo.
- BFeaturesCrawls sites of several million pages, shows Googlebot's crawl in real time from your logs, merges the two to find orphan and ignored pages, and serves raw crawl, log, Search Console and CrUX data through an API. The listing shows no gap in the core job.
- CEase of useNo rating on record. The log reports stay empty until your server logs are connected, and then there are page categories to build.
- BPlatforms and integrationsWeb only. It connects to Search Console and works with BigQuery and Power BI through an API with no limit on calls or rows.
What these grades rest on. Graded from this listing, whose facts were read from Seolyzer's own pages on 23 October 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
Make Seolyzer? Put this grade on your site
Paste this where you want the badge. It links here and follows the grade if it changes. About badges
<a href="https://toolgpa.com/tools/seolyzer#review"><img src="https://toolgpa.com/badge/seolyzer.svg" alt="Seolyzer: 2.0 GPA on ToolGPA" width="196" height="56"></a>Where Seolyzer stands among technical SEO tools
Seolyzer's GPA of 2.0 is higher than 10 of the 83 other technical SEO tools we grade, and level with 9.
It stands best on features (B, above 77 of 83) and worst on free plan and trial (F, above 0).
Each grade against the category
Every bar is all 84 technical SEO tools we grade, cut by the letter each got. Seolyzer’s own letter is outlined.
- CValue for moneyAbove 9 of 83, level with 33
- FFree plan and trialAbove 0 of 83, level with 11
- BFeaturesAbove 77 of 83, level with 5
- CEase of useAbove 7 of 83, level with 54
- BPlatforms and integrationsAbove 27 of 83, level with 56
Keep Seolyzer, or make your own?
Keep it
The plain part of Seolyzer you could make: internal linking. What surrounds it you could not. The 5 things listed below take a company, not a weekend.
That makes this kind of software worth paying for, not this one in particular: 64 of the 83 other technical SEO tools grade higher.
What you could make
- Internal linking: an app builder makes this well.
What you could not
- A crawler that checks every page of a site.
- Millions of server log lines read to see what search bots crawl.
- It plugs into other products, Google Search Console, BigQuery and Power BI among them, and has an API.
- Sharing with other people, which means accounts and invitations.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Seolyzer’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Seolyzer?
Seolyzer is a French cloud platform that combines an SEO crawler with real-time analysis of server logs and Google Search Console data. It shows which pages Googlebot crawls, ignores or never finds, flags orphan pages and redirects bots do not follow, and exposes all of its data through an API with no call limits. It is sold to businesses after a demo, and its data is hosted in France.
Worth knowing
- No prices are published: the old pricing page no longer exists and the site offers only a demo booking.
- Its terms of sale cover business customers only and say prices are set in euros, excluding tax.
- Subscriptions renew automatically and must be cancelled by registered letter at least one month before the renewal date.
- Log analysis needs your server log files to be connected to the service.
Key features
- SEO crawler
- Crawls sites of several million pages for indexability, status codes, titles and meta tags, depth, response time, sitemaps, orphan pages and internal PageRank.
- Real-time log analysis
- Shows live which pages Googlebot crawls most, mobile against desktop bots, server response times, cached pages, bad bots and visits from Google Discover and News.
- Cross analysis
- Merges crawl and log data to find orphan, ignored and inactive pages, redirects and errors Googlebot does not follow, and sitemap crawl rates.
- Page categorization
- Group URLs into multi-level categories that apply live and to past data, to see which page types bots favor.
- API
- Raw and aggregated crawl, log, Search Console and CrUX data in JSON, with no limit on calls or rows, and BigQuery and Power BI compatible.
- Unlimited sharing
- Share project data with your team or outside providers without a cap on users and at no extra cost.
Seolyzer pricing
We could not confirm Seolyzer’s current pricing from its own site, so we are not listing plans here. See seolyzer.io for current prices.
Works with
Seolyzer alternatives
- Seolyzer vs JetOctopus
Free trial · from $349/mo
- Seolyzer vs Screaming Frog SEO Spider
Free plan · from $279/yr
Common questions
Does Seolyzer have an Android app?
No Android app was listed when its pages were read on Oct 23, 2026. Seolyzer is listed for Web.
Does Seolyzer have an iPhone app?
No iPhone app was listed when its pages were read on Oct 23, 2026. Seolyzer is listed for Web.
Is Seolyzer open source?
Seolyzer is not described as open source on its own site, as read on Oct 23, 2026.
Does Seolyzer have an API?
Yes. Seolyzer offers a public API, according to its own site.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 23, 2026.