Seolyzer
Seolyzer is a hosted technical SEO platform that combines website crawling, server-log analysis, and Google Search Console data.
What Seolyzer is
Seolyzer is a hosted technical SEO platform that combines website crawling, server-log analysis, and 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. The maker says crawls can handle up to 50 million URLs at 1,000 URLs per second. Log analysis covers crawl volume, response codes and times, ignored and orphan pages, bad bots, organic and paid visits, Google News and Discover, and cache rates. Logs can arrive through PHP, Apache, Nginx, Varnish, Cloudflare, Amazon S3, Akamai, OVH, or secure FTP. Cross-analysis compares crawl and log data to identify inconsistencies. The REST API returns raw and aggregated JSON, including Search Console and CrUX data, and is described as compatible with BigQuery and Power BI. Data exports support unlimited CSV or Excel files, while project sharing includes administrator, contributor, and reader roles.
Good
- Combines crawling, logs, and Search Console data
- Handles crawls up to 50 million URLs
- Supports multiple log ingestion sources
- Provides REST API with JSON data
- Offers unlimited CSV and Excel exports
Watch out
- Pricing is available on request
- Terms exclude consumers
- Service is online SaaS
- Maintenance and outages can affect availability
Who it suits
Seolyzer is intended for professional clients and technical SEO specialists. It suits teams needing crawler, log, Search Console, API, export, and collaboration tools.
Verdict
Seolyzer combines technical crawling, log analysis, and Google data for professional SEO work. Its API, exports, sharing controls, and broad ingestion options support larger analytical workflows.
The facts
Each one read from Seolyzer's own pages, with the date it was checked.
What it does
- API
- The REST API returns raw and aggregated data in JSON, and the maker says it is compatible with BigQuery and Power BI.checked 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.checked 11 Oct 2026
- Availability
- The terms describe the service as online SaaS available 24/7 except during maintenance, outages, or force majeure.checked 11 Oct 2026
- Crawl capacity
- The maker says a crawl can handle up to 50 million URLs at 1,000 URLs per second.checked 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.checked 11 Oct 2026
- Cross analysis
- Cross analysis combines crawl and log data to find orphan, ignored and inactive pages, among other inconsistencies.checked 11 Oct 2026
- Data exports
- The crawler supports exports in CSV and Excel formats, which the maker describes as unlimited.checked 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.checked 11 Oct 2026
- Intended customers
- The maker’s terms describe subscribers as professional clients and exclude consumers.checked 11 Oct 2026
- Intended users
- The maker describes Seolyzer as a technical SEO platform made by SEOs for SEOs.checked 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.checked 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.checked 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.checked 11 Oct 2026
- Privacy
- The maker says imported log data is anonymized at collection and personal data from logs is not stored.checked 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.checked 11 Oct 2026
- Purpose
- Seolyzer combines technical SEO analysis, site crawling, log analysis and Google Search Console data.checked 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.checked 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.checked 11 Oct 2026
- SEO crawler
- The crawler reports on indexability, HTTP codes, titles and metadata, page depth, response time, orphan pages and sitemaps.checked 11 Oct 2026
- Sharing
- Project data can be shared with collaborators and clients, with administrator, contributor or reader privileges.checked 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.checked 11 Oct 2026
- Site audit
- Yeschecked 21 Sep 2026
- Support
- The maker describes support as provided by senior SEOs and offers contact by chat and email.checked 11 Oct 2026
The company
- Headquarters
- 137 Avenue Anatole France, 94600 Choisy-le-Roi, Francechecked 28 Sep 2026
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