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Crawler Log Analyser

Free#24 of 27 in SEO Log File Analysis Tools

Crawler Log Analyser: A focused self-hosted CLI for automated crawler and crawl-health reports. Ranked #24 of 27 in SEO Log File Analysis Tools by our editors (6.9/10); pricing: Open source; best for developers needing automated self-hosted reports.

6.9/10Editor score

Visit SpeyTech

Crawler Log Analyser6.9 Visit SpeyTech

At a glance

Editor score
6.9 / 10
Pricing
Open source
Best for
Developers needing automated self-hosted reports
Paid from
Free
Crawler segmentation
Yes
Facts checked
21 Sep 2026

Where it wins
- Reads standard, extended, and rotated gzip nginx logs
- Classifies search and AI crawlers and scores Googlebot crawl health
- Supports text, Markdown, JSON, cron, CI, and strict mode
Where it doesn't
- Requires self-hosted deployment rather than a hosted service
- Has no dashboard, database, or SaaS interface
- Does not integrate with Google Search Console

Our verdict on Crawler Log Analyser

Crawler Log Analyser is an open-source, self-hosted Python command-line tool for operators of static sites running nginx. It reads standard combined nginx access logs, extended seo_crawl nginx logs, and rotated gzip files. Its focus is operational SEO observability: the tool classifies search and AI crawler traffic, scores Googlebot crawl health, analyses redirects and response latency, and identifies crawler anomalies around deployment windows.

The workflow fits teams that already manage cron jobs or CI pipelines. Crawler Log Analyser supports strict mode for automated checks and can emit text, Markdown, or JSON reports, making the output suitable for different reporting and automation needs. It also suppresses security-probe noise, which keeps attention on crawler activity rather than unrelated requests. Because the product has no external service dependency, its operating model stays within the self-hosted environment.

This narrow focus is useful for developers who want repeatable log-based reporting without adopting a dashboard, database, or SaaS component. It is less suitable for buyers seeking a hosted interface, broader SEO workflow management, or direct Google Search Console integration. Choose it when nginx log analysis, crawler segmentation, crawl-health scoring, anomaly detection, and CI or cron execution are the priority; consider an alternative when a visual dashboard or search-performance integration is central to the workflow.

Your product? Our editors can test Crawler Log Analyser in depth and publish a review, labelled as paid · from $149/mo →

Crawler Log Analyser pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.

See plans on github.com

Crawler Log Analyser fact sheet

Free plan	Not verified
Paid from	Free
Log input methods	Not verified
Crawler segmentation	Yes
Crawl waste reports	Not verified
Log processing limit	Not verified
Data retention	Not verified
Search Console integration	No
Deployment	Self-hosted
Support	Docs
Built for	Solo, Small business (editorial estimate)
Pricing	Open source
Website	github.com
Facts checked	21 Sep 2026

Alternatives to Crawler Log Analyser

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Featured on iTechGuides

Crawler Log Analyser is listed in our SEO Log File Analysis Tools directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update