A technical SEO crawler built for complex websites
Collect and analyze thousands of metrics across your site with full JavaScript rendering, at any scale
Crawl what you need, when you need it
What Oncrawl offers
Crawl your site's structure, content, performance, and internal linking with hundreds of standard metrics and the ability to add custom ones.
See your site the way search engines and AI systems do, including JavaScript-rendered content and Core Web Vitals.
Crawl millions of URLs without artificial limits on speed, depth, or site size. Built for the sites other crawlers can't handle.
The data foundation behind every technical SEO audit
Configure crawls to match your workflow
Oncrawl manages multiple projects, configurations, and schedules so your team can focus on analysis.
- Define scope, frequency, and notification options for each crawl configuration.
- Run different crawl types for different use cases: audits, monitoring, indexability checks, or custom analysis.
- Manage multiple projects and sites from a single platform.
- Solve rendering, access, and complexity issues that limit other crawlers.
Analyze the metrics that matter for your site
Every website is different. Understand how your content and structure work together.
- Audit crawlability, indexing signals, internal linking, content quality, and performance across your entire site.
- Use custom extraction to collect any on-page data point specific to your site’s setup.
- Contextualize crawl data with signals from GA4, Google Search Console, and other connected sources.
- Focus on the site sections that are most viewed or the highest converting.
Track changes and stay ahead of issues
Discover how changes impact technical health before they affect performance.
- Compare crawl results over time to detect regressions and track improvements.
- Monitor the technical factors that influence how search engines and AI systems evaluate your site.
- Incorporate new metrics as search and answer engines evolve.
- Set up alerts to flag critical changes automatically.
See your site the way search engines do,
then make it better
See what Oncrawl can do for you
Book your demo (nouvelle fenêtre)Our clients' results speak for themselves
"I'd recommend Oncrawl for technical SEO challenges."
Discover all our client success stories (nouvelle fenêtre)“What I really enjoy is that you have pre-defined reports but can also export all the data raw if you like. Big bonus points for the seamless API. Even bigger bonus points for being able to cross-reference with the GSC API and even simple spreadsheets – huge value add when building custom SEO models.”
"Oncrawl: My Go-To for Technical SEO"
Explore Booksy (nouvelle fenêtre)“Oncrawl is key for analyzing large marketplaces and tracking Googlebot. Its strength: combining crawl data, bot hits, and external sources to uncover high-impact SEO actions. I also love the scraping feature and insights on emerging bots like ChatGPT.”
"Reliable, Insightful & Actionable for Large Sites"
Visit our blog for SEO insights (nouvelle fenêtre)“Oncrawl is my go-to for large sites. Reliable and clear, it visualizes data and offers powerful segmentation. The monitoring system detects issues early. Combining crawl and live log analysis, it helps make smart SEO decisions that improve performance and ROI.”
"Highly recommend Oncrawl’s suite of tools"
Learn more about Roast (nouvelle fenêtre)“Oncrawl is a fast, scalable tool that helps our team deliver technical audits on large sites. Its speed makes it easy to spot crawlability and indexation issues, and automated reports simplify client communication. Strong integrations enhance our analyses, making Oncrawl highly valuable.”
