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SPECIFICTION
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CrawlZilla

crawl-zilla.com

Free plan WebAPI
Visit crawl-zilla.com
Spec score 8.1 #71 of 245 in SEO tools

What it is

CrawlZilla is a cloud-based SEO crawler for technical site analysis, available on the web and through an API. Its Spider, List and Subdomain modes can crawl HTML, images, JavaScript, CSS and PDFs. Each URL can include more than 40 data points, such as titles, canonicals, hreflang, schema and Open Graph information. An internal-link graph tracks links to help identify orphan pages and show PageRank flow; headless Chrome renders JavaScript pages. Lighthouse audits report Performance, Accessibility, Best Practices and SEO scores, plus Core Web Vitals. Page Monitor checks URLs on a chosen schedule, detects changes across 12 or more SEO fields and can send email alerts. Its REST API uses HTTPS, returns JSON and authenticates with bearer tokens. The free plan allows 10,000 URLs per session, 10 requests per second, three Lighthouse audits per crawl and 20 monitored URLs. Premium is £39.99 a month, with limits of 1,000,000 URLs per session, 20 requests per second, 10 Lighthouse audits per crawl and 500 monitored URLs. The maker says its distributed cloud infrastructure supports crawls of 100 million or more URLs and requires no installation or server management.

Spec sheet

Product
CrawlZilla is a cloud-based SEO crawler for technical SEO analysis.Read 3 Oct 2026 · crawl-zilla.com
Free plan
YesRead 22 Sep 2026 · crawl-zilla.com
API
The REST API uses HTTPS, returns JSON, and authenticates requests with bearer tokens.Read 3 Oct 2026 · crawl-zilla.com
Integrations
The Enterprise plan lists custom API integrations; no named third-party integrations are stated on the pricing page.Read 3 Oct 2026 · crawl-zilla.com
Support
The homepage says no software installation or server management is required.Read 3 Oct 2026 · crawl-zilla.com
API access
YesRead 22 Sep 2026 · crawl-zilla.com
API security
The API documentation says tokens are stored as SHA-256 hashes and recommends keeping tokens out of source control and client-side code.Read 3 Oct 2026 · crawl-zilla.com
Crawl modes
The crawler supports Spider, List, and Subdomain modes and can crawl HTML, images, JavaScript, CSS, and PDFs.Read 3 Oct 2026 · crawl-zilla.com
Internal links
Its inlink graph tracks internal links to help find orphan pages and show PageRank flow.Read 3 Oct 2026 · crawl-zilla.com
JavaScript rendering
The product uses headless Chrome to render JavaScript pages.Read 3 Oct 2026 · crawl-zilla.com
Lighthouse
Lighthouse audits report Performance, Accessibility, Best Practices, and SEO scores plus Core Web Vitals.Read 3 Oct 2026 · crawl-zilla.com
Page monitoring
Page Monitor checks URLs on a chosen schedule, detects changes across 12 or more SEO fields, and can send email alerts.Read 3 Oct 2026 · crawl-zilla.com
Scale
The maker says its distributed cloud infrastructure supports crawls of 100 million or more URLs.Read 3 Oct 2026 · crawl-zilla.com
SEO analysis
Each URL can include more than 40 data points, including titles, canonicals, hreflang, schema, and Open Graph data.Read 3 Oct 2026 · crawl-zilla.com

Plans and prices

Free Free £0/mo 10,000 URLs per session · 10 requests per second · 3 Lighthouse audits per crawl · 20 monitored URLs Read 22 Sep 2026 · crawl-zilla.com
Lite Price not published 100,000 URLs per session · 10 requests per second · 5 Lighthouse audits per crawl · 100 monitored URLs Read 22 Sep 2026 · crawl-zilla.com
Premium £39.99 a month £39.99/mo 1,000,000 URLs per session · 20 requests per second · 10 Lighthouse audits per crawl · 500 monitored URLs Read 22 Sep 2026 · crawl-zilla.com
Free Free 10,000 URLs · 10 req/s Read 3 Oct 2026 · crawl-zilla.com
Premium £39.99 a month 1,000,000 URLs · 20 req/s Read 3 Oct 2026 · crawl-zilla.com
Ultimate £79.99 a month 10,000,000 URLs · 50 req/s Read 3 Oct 2026 · crawl-zilla.com
Enterprise Priced on request 100M+ URLs · Dedicated infrastructure Read 3 Oct 2026 · crawl-zilla.com

Every CrawlZilla plan and price →

Strong points and limits

Strong points

  • Spider, List and Subdomain crawl modes
  • More than 40 data points per URL
  • Scheduled monitoring with email alerts
  • Free plan includes 10,000 URLs per session

Limits

  • Free plan allows 20 monitored URLs
  • Free plan limits crawls to three Lighthouse audits
  • Premium is listed at £39.99 a month

Who it suits

It suits technical SEO users who need scheduled crawling, JavaScript rendering, Lighthouse audits or URL monitoring. The API and stated large-scale infrastructure may suit teams automating analysis or handling very large crawls.

Verdict

CrawlZilla combines crawl analysis, Lighthouse audits, link mapping and scheduled page monitoring in a cloud service. Its free plan defines modest audit and monitoring allowances; Premium lists a higher URL limit at £39.99 a month.

Where Specifiction places it

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