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Head-to-head · Technical SEO Software

Netpeak Spider vs CrawlZilla

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Netpeak Spider #2 in Technical SEO Software 8.1/10 Free plan · 3-day trial Free planFree trial✓ 2 of 5 features Visit Netpeak Spider
CrawlZilla #5 in Technical SEO Software 7.9/10 Free plan Free plan✓ 4 of 5 features Visit CrawlZilla

Netpeak Spider leads on 0 checks, CrawlZilla on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreNetpeak Spider · 8.1/10
  • Free planboth
  • Free trialonly Netpeak Spider
  • Most featuresCrawlZilla · 4 of 5

Netpeak Spider scores higher on our rubric for technical seo software: 8.1 against 7.9 out of 10; our editors rank them #2 and #5.

Netpeak Spider is the better fit for desktop users wanting affordable technical audits. CrawlZilla is the better fit for large sites needing high crawl capacity.

  • Netpeak Spider fits best

    Desktop users wanting affordable technical audits

  • CrawlZilla fits best

    Large sites needing high crawl capacity

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.

Side by side

Feature Netpeak Spider 8.1/10 Visit ↗ CrawlZilla 7.9/10 Visit ↗
At a glance
Editor score 8.1 7.9
Ranking #2 in Technical SEO Software #5 in Technical SEO Software
Best for Desktop users wanting affordable technical audits Large sites needing high crawl capacity
Pricing model Free plan + paid Free plan + paid
Starting price — —
Free plan ✓ ✓
Free trial 3 days —
Deployment Desktop Cloud, Self-hosted
Platforms Windows, macOS Web
Support Email, Tickets, Community, Docs Email, Community · 24/7
Compliance GDPR SSO/SAML
Built for Solo, Small business, Mid-market Solo, Small business, Mid-market, Enterprise
Features Netpeak Spider 2/5 · CrawlZilla 4/5
Scheduled crawls Not checked yet ✓ (best)
JavaScript rendering ✓ ✓
Log-file analysis Not checked yet Not checked yet
Structured data audit ✓ ✓
API access Not checked yet ✓ (best)
Specs
Crawl limit Not checked yet 100000 pages/crawl
Our review
Pros
  • Checks more than 100 technical SEO issues
  • Supports JavaScript rendering, scraping, and sitemap tools
  • Offers unlimited URLs and Google integrations on paid plans
  • Crawls up to 10,000,000 URLs per crawl on Ultimate
  • Audits 40+ SEO data points per URL
  • Combines JavaScript, Lighthouse, hreflang, and structured-data audits
Cons
  • Requires Windows or macOS desktop software
  • The free trial lasts 3 days
  • Not suited to teams needing log-file analysis or a documented API
  • Integrations are absent
  • Premium starts at £39.99 per month
  • The product is available on web only
Our verdict

Netpeak Spider is a desktop application for technical SEO auditing and website crawling. It is designed for SEO specialists, webmasters, developers, and marketing teams that need to inspect page elements, site structure, source code, HTTP…

Read the review →

CrawlZilla is a browser-based technical SEO crawler for SEO professionals, agencies, developers, and businesses auditing websites at scale. It crawls HTML, images, JavaScript, CSS, and PDFs, reporting on more than 40 SEO data points per…

Read the review →
  1. Netpeak SpiderTechnical SEO Software 8.1Free plan · 3-day trial
  2. CrawlZillaTechnical SEO Software 7.9Free plan

Strengths and trade-offs

  • Netpeak Spider — where it wins

    • Checks more than 100 technical SEO issues
    • Supports JavaScript rendering, scraping, and sitemap tools
    • Offers unlimited URLs and Google integrations on paid plans

    Where it doesn't

    • Requires Windows or macOS desktop software
    • The free trial lasts 3 days
    • Not suited to teams needing log-file analysis or a documented API
  • CrawlZilla — where it wins

    • Crawls up to 10,000,000 URLs per crawl on Ultimate
    • Audits 40+ SEO data points per URL
    • Combines JavaScript, Lighthouse, hreflang, and structured-data audits

    Where it doesn't

    • Integrations are absent
    • Premium starts at £39.99 per month
    • The product is available on web only

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update