Seolyzer
by Seolyzer

What Seolyzer is
Seolyzer is a hosted technical SEO platform for crawling websites, examining server logs and bringing those findings together with Google Search Console data. Its crawler reports indexability, HTTP codes, titles and metadata, crawl depth, response times, orphan pages, sitemaps, internal PageRank and word counts. Log analysis covers crawl activity, response codes and times, ignored and orphan pages, bad bots, organic and paid visits, Google News and Discover, and cache rates. Log data can arrive through PHP, Apache, Nginx and Varnish connectors or from Cloudflare, Amazon S3, Akamai, OVH and secure FTP. Its REST API returns raw and aggregated JSON and exposes Search Console and CrUX data; the maker says it is compatible with BigQuery and Power BI. Crawler data exports to CSV or Excel, and project information can be shared with administrator, contributor or reader privileges. The maker says data is hosted in France and log personal data is anonymized before storage. Pricing is available on request.
Who it suits
It is aimed at technical SEO professionals and professional clients who need to examine crawls, logs and search data. The maker’s terms exclude consumers.
What it does well
- Crawler reports on technical page and crawl details.
- Accepts logs from multiple connectors and services.
- API exposes Search Console and CrUX data.
- CSV and Excel crawler exports are available.
What to know first
- Pricing is available on request.
- Terms exclude consumers.
Limits
The facts do not state quotas for plans or API usage. Pricing is provided on request.
Getting started
- Open the Seolyzer website
- Use the web platform or API access
- Connect a site for crawling
- Provide logs through a listed connector or source
- Connect Google Search Console data
Verdict
Seolyzer combines crawling, log analysis and Google Search Console data, with API access and project sharing. It is geared toward professional SEO work, and pricing requires an inquiry.
Questions
What does Seolyzer combine?
It combines site crawling, server-log analysis, and Google Search Console data.
Which platforms are supported?
Seolyzer is available through web and API access.
How much does Seolyzer cost?
Pricing is on request.
Can teams share project data?
Yes. Data can be shared with administrator, contributor, or reader permissions, without user-count surcharges.
What formats can crawler data use for export?
Crawler data can be exported in CSV or Excel, with exports described as unlimited.
Where is data hosted?
The maker says data and infrastructure are hosted in France, with log personal data anonymized before storage.
Facts from Seolyzer's own pages
- API
- The REST API returns raw and aggregated data in JSON, and the maker says it is compatible with BigQuery and Power BI. · seolyzer.io, 11 Oct 2026
- API access
- An access token is required for the API, and the maker says to contact them to obtain one; API limits are subject to fair use. · seolyzer.io, 11 Oct 2026
- Availability
- The terms describe the service as online SaaS available 24/7 except during maintenance, outages, or force majeure. · seolyzer.io, 11 Oct 2026
- Crawl capacity
- The maker says a crawl can handle up to 50 million URLs at 1,000 URLs per second. · seolyzer.io, 11 Oct 2026
- Crawler
- Its crawler reports indexability, HTTP codes, titles and meta, crawl depth, response times, orphan pages, sitemaps, internal PageRank, and word counts. · seolyzer.io, 11 Oct 2026
- Cross analysis
- Cross analysis combines crawl and log data to find orphan, ignored and inactive pages, among other inconsistencies. · seolyzer.io, 11 Oct 2026
- Data exports
- The crawler supports exports in CSV and Excel formats, which the maker describes as unlimited. · seolyzer.io, 11 Oct 2026
- Google data
- Seolyzer combines crawl and log data with Google Search Console data; its API also exposes Search Console and CrUX data. · seolyzer.io, 11 Oct 2026
- Headquarters
- 137 Avenue Anatole France, 94600 Choisy-le-Roi, France · seolyzer.io, 28 Sept 2026
- Intended customers
- The maker’s terms describe subscribers as professional clients and exclude consumers. · seolyzer.io, 11 Oct 2026
- Intended users
- The maker describes Seolyzer as a technical SEO platform made by SEOs for SEOs. · seolyzer.io, 11 Oct 2026
- Log analysis
- Log analysis reports crawl volume, response codes and times, ignored and orphan pages, bad bots, organic and paid visits, Google News and Discover, and cache rates. · seolyzer.io, 11 Oct 2026
- Log ingestion
- The maker lists connectors for PHP, Apache, Nginx, and Varnish, plus ingestion from Cloudflare, Amazon S3, Akamai, OVH, and secure FTP. · seolyzer.io, 11 Oct 2026
- Log sources
- The maker lists connectors for PHP, Apache, Nginx and Varnish, and says logs can also come from Cloudflare, Amazon S3, Akamai, OVH or secure FTP. · seolyzer.io, 11 Oct 2026
- Privacy
- The maker says imported log data is anonymized at collection and personal data from logs is not stored. · seolyzer.io, 11 Oct 2026
- Product
- Seolyzer is a hosted technical SEO platform for crawling sites, analyzing server logs, and combining those data with Google Search Console. · seolyzer.io, 11 Oct 2026
- Purpose
- Seolyzer combines technical SEO analysis, site crawling, log analysis and Google Search Console data. · seolyzer.io, 11 Oct 2026
- Security and location
- The maker says data and infrastructure are hosted in France, log IP data is anonymized before storage, and site communications use SSL encryption. · seolyzer.io, 11 Oct 2026
- Security and privacy
- The maker states that data is hosted in France, log personal data is anonymized before storage, and site communications use SSL encryption. · seolyzer.io, 11 Oct 2026
- SEO crawler
- The crawler reports on indexability, HTTP codes, titles and metadata, page depth, response time, orphan pages and sitemaps. · seolyzer.io, 11 Oct 2026
- Sharing
- Project data can be shared with collaborators and clients, with administrator, contributor or reader privileges. · seolyzer.io, 11 Oct 2026
- Sharing and exports
- The maker says users can share project data without user-count surcharges and export crawler data without limits in CSV or Excel. · seolyzer.io, 11 Oct 2026
- Site audit
- Yes · seolyzer.io, 21 Sept 2026
- Support
- The maker describes support as provided by senior SEOs and offers contact by chat and email. · seolyzer.io, 11 Oct 2026
Where Seolyzer stands on Freedom251
- SEO tools#235 of 245
- SEO Crawler Software#34 of 34
- SEO Log File Analysis Tools#27 of 27
