Back to Home
SEO Spider & Crawler

See Your Website Through Google's Eyes

Crawl any website like a search engine does. Discover broken links, missing meta tags, duplicate content, and 100+ SEO issues in minutes.

No limits on pages ยท Desktop privacy ยท Windows, Mac & Linux

100+ SEO Checks Built In

Our crawler runs comprehensive technical audits, catching issues that hurt your rankings.

Broken links (4xx, 5xx)
Redirect chains & loops
Missing meta titles
Duplicate content
Missing H1 tags
Image alt text
Canonical issues
Hreflang errors
Sitemap problems
Robots.txt issues
SSL/HTTPS status
Page speed metrics

Powerful Features

Everything you need to audit your website's technical SEO health.

Find Broken Links

Discover 404 errors, redirect chains, and broken internal/external links before they hurt your SEO.

Meta Tag Analysis

Identify missing, duplicate, or poorly optimized title tags and meta descriptions.

Internal Link Structure

Visualize your site architecture and optimize PageRank flow across your pages.

Page Speed Insights

Get load time metrics for every page and identify slow-loading resources.

Security Checks

Find mixed content, HTTP pages, and other security issues affecting your rankings.

Schema Validation

Detect and validate structured data markup across your entire website.

Why Choose Onpage Spider?

Compared to other crawlers, we offer more value at a better price.

FeatureOnpage.aiScreaming Frog
Page Limit (Free)Unlimited*500 pages
Desktop Privacyโœ“โœ“
SERP Analyzerโœ“ Includedโœ—
AI Writerโœ“ Includedโœ—
Cloud Syncโœ“โœ—
PriceFree / $29/mo$259/year

*Unlimited crawling with credits for advanced features

Ready to Audit Your Website?

Start crawling your site in seconds. Find and fix SEO issues before they hurt your rankings.