OnCrawl SEO Crawler
SEO crawler for enterprise audits and daily monitoring.
Increase your organic traffic and site revenues with reliable data.
All features included – No credit card needed
Analyze your website like Google does
Understand how Google sees your website on all devices, gain insights on how to optimize your SEO and ensure all your Javascript elements are actually rendered by search engines.
Direct search engine bots to your strategic pages
Improve content, HTML quality, performance and architecture so that your money pages can be crawled, indexed and ranked by search engines.
Boost conversions and revenues with accurate data
Rely on the right assets and data to master your technical SEO and optimize pages that drive revenues.
What makes OnCrawl SEO Crawler unique?
- Unrivalled volume capacity
OnCrawl SEO crawler has been built with the input of the biggest e-commerce player in Europe. We work with websites with over 70M URLs which means that there is no crawl we can’t handle.
- Unique innovations
OnCrawl is the first to offer a near duplicate content detector that calculates a similarity ratio between pages using the Simhash algorithm. We have also achieved the next generation of internal PageRank.
- Javascript rendering
OnCrawl SEO crawler enables websites with Javascript to be crawled and executed in the same way as search engines do.
- Powerful segmentation
OnCrawl is the only technical SEO platform to offer segmentations based on any dataset. Take your SEO audits one step further by mapping your URLs into strategic groups and segments.
- Advanced crawl settings
OnCrawl handles any advanced requirements, from lists of URLs, virtual robots.txt, DNS override, staging websites, subdomains or even URLs with parameters.
- Detailed crawl comparison
OnCrawl lets you choose two crawls to compare. Extensive comparison metrics allow you to track changes over time and measure the exact effect of new policies on your site.
- Open-ended data extension
Scrape data during crawls to explore the associations with information like publishing dates, product pricing and AMP implementation – or ingest CSV files from your CRM, analytics, monitoring solution or any other data that matter for your business objectives.
How to use OnCrawl SEO Crawler for strategic SEO optimisations



Detect near duplicates
Filter your near duplicates by similarity ratio and know where to act.

Improve architecture
Get an accurate view of your internal linking and how popularity spreads.