Oncrawl

Technical SEO

Enterprise crawler with data science SEO approach

Overview

Oncrawl positions itself as the technical SEO crawler for data scientists and enterprise teams who need more than basic site auditing. Built by a French team since 2013, it combines traditional crawling capabilities with machine learning analytics and deep log file analysis. While tools like Screaming Frog dominate the desktop crawling market, Oncrawl targets organizations that need to understand not just what's broken on their sites, but why certain technical issues impact organic performance more than others.

The platform's core differentiator is its data science approach to technical SEO. Instead of just flagging duplicate titles or missing meta descriptions, Oncrawl uses statistical analysis to identify which technical issues correlate most strongly with ranking drops or crawl budget waste. This makes it particularly valuable for large sites where fixing every technical issue isn't realistic, and teams need to prioritize based on actual SEO impact.

Oncrawl's log analysis capabilities set it apart from most crawlers. By integrating server logs with crawl data, it reveals how search engines actually behave on your site versus how you think they should behave. This combination helps identify crawl budget optimization opportunities that pure crawlers miss.

Score breakdown

Composite Score

38.5

#6 of 9 in Technical SEO#103 of 508 overall

Feature Depth22.0

Ease of Use65.0

Data Quality32.0

Value for Money55.0

Integration40.0

Market Traction18.0

Our review

Oncrawl is an enterprise technical SEO platform combining website crawling, log file analysis, and data science capabilities. It provides deep technical insights by correlating crawl data with log files and Google Search Console for advanced SEO analysis.

Pros

✓Enterprise-grade crawling with data science
✓Log file analysis integrated with crawl data
✓Data correlation across multiple sources
✓Segmented analysis for large sites

Cons

—Enterprise pricing model
—Technical tool requiring expertise
—Less accessible for beginners

Best for

Enterprise technical SEO teamsData-driven SEOs doing advanced analysisLarge sites needing crawl budget optimization

Key features

Data Science Approach

Uses machine learning and statistical analysis to identify technical SEO patterns and correlations that traditional crawlers miss.

Log File Analysis

Deep integration with server logs to understand search engine crawling behavior and identify crawl budget optimization opportunities.

Custom Crawling Rules

Advanced crawl configuration with custom rules for complex sites including JavaScript rendering and authentication flows.

API Integration

Comprehensive REST API for integrating crawl data with business intelligence tools and custom analytics dashboards.

Cross-Site Analysis

Compare technical metrics across multiple websites or subdomains to identify architectural patterns and optimization opportunities.

Predictive Analytics

Machine learning models predict technical SEO impact and prioritize fixes based on potential organic traffic gains.

Pricing

Plan	Price	Includes
Starter	Custom	Basic crawling, core audits, limited logs
Professional	Custom	Advanced crawling, full log analysis, API access
Enterprise	Custom	Unlimited crawling, custom integrations, dedicated support

Price verified 2025-02-01 · USDView vendor pricing

FAQ

How does Oncrawl compare to Screaming Frog for enterprise sites?

Oncrawl handles larger crawls better and includes log analysis plus machine learning insights, while Screaming Frog is faster for smaller audits. Oncrawl is cloud-based versus Screaming Frog's desktop approach.

Does Oncrawl work with JavaScript-heavy sites?

Yes, Oncrawl renders JavaScript during crawls and can analyze both server-side and client-side content. It's particularly strong at identifying rendering issues that affect search engine crawling.

What's included in Oncrawl's log analysis features?

Log analysis covers crawl budget analysis, bot behavior patterns, HTTP status tracking, and correlation between crawling frequency and ranking performance. It integrates directly with major CDNs and hosting providers.

Can Oncrawl integrate with Google Search Console data?

Yes, Oncrawl pulls Search Console data to correlate technical issues with actual search performance metrics like impressions, clicks, and crawl errors.

Is Oncrawl suitable for agencies managing multiple clients?

Oncrawl is designed for enterprise use with multi-site management, white-label reporting, and role-based access controls. Most agencies find it cost-effective for clients with large, complex sites.

AI Platform Coverage

PlatformTracked

ChatGPT✓

Perplexity✓

Claude✓

Mistral✓

Capabilities

AI Visibility Metrics

✓Position Ranking

✓Trend Tracking

✓Alert System

✓Content Recommendations

✓Crawler Analytics

✓Traffic Attribution

Content & Optimization

✓Content Audit

✓Site Audit

Entity SEO

✓Internal Linking

Traditional SEO

—Keyword Rank Tracking

Technical & Integrations

✓API

✓CSV Export

—Chrome Extension

—WordPress Plugin

—Open Source

Deployment: cloud

Integrations

Google Search ConsoleGoogle Analytics 4Adobe AnalyticsPiano AnalyticsMajesticLooker Studio

Social Proof

Notable Customers

L'OrealTicketmasterHarrodsFutureSkyscannerHelloFreshBooksyZurich Insurance UK

Testimonials

“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.”
Zbigniew Dróżdż, Senior SEO specialist at Booksy

“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.”
Andor Palau, SEO & Online Marketing Consultant

“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.”
Mark Stanford, Organic Performance Lead (Technical) at Roast

How does Oncrawl compare?

vs alli-aiCompare →vs botifyCompare →vs jetoctopusCompare →vs lumarCompare →vs ryteCompare →

View all comparisons →

aiseo.is Score

38.5

#6 of 9 in Technical SEO

Garrett SmithExpert reviewer

20+ yrs in SEO3+ yrs AI for SEO20K+ campaigns

Review Sentiment

G2★★★★½4.3 Capterra★★★☆☆3.8

Overall★★★★☆4.2

32 reviews across 2 sources

People love

+Enterprise crawler with data science capabilities for petabyte-scale technical SEO
+Log file analyzer maps Googlebot crawl patterns at the individual URL level
+Segmentation features enable analysis of specific site sections and page types

Common complaints

–Custom enterprise pricing is prohibitively expensive for SMBs
–Customer support has received criticism for slow and unreliable responses
–Steep learning curve requires both technical SEO and data analysis expertise

🟠Reddit sentiment

mixed

10 threads in TechSEO, SEO, bigseo

Enterprise-level technical SEO crawlerCompared favorably to competitors like Botify and DeepCrawlPreferred over other tools for site auditsStrong for technical insights and log file analysis

“I'd say DeepCrawl, Oncrawl, Botify, are the main 3 players. They are all pretty similar, you should get a demo or trail to see how they fit”
r/TechSEO

“The site audit can give you massive red herrings (I prefer Oncrawl). The link tracking is weak, not as good as Ahrefs.”
r/SEO

🔵𝕏 sentiment

positive

3 posts

AI search optimization focusContent marketing and educational resourcesLow engagement/limited discussion

“Comment mesurer et optimiser votre présence dans les recherches #IA ✔️ https://fr.oncrawl.com/ia/comment-mesurer-optimiser-votre-presence-dans-recherches-ia/ @Oncrawl #MarketingDigital”
@AnthonyRochand

“Comment mesurer et optimiser votre présence dans les recherches #IA https://fr.oncrawl.com/ia/comment-mesurer-optimiser-votre-presence-dans-recherches-ia/ via @Oncrawl”
@AurelieCoudouel

Last updated Feb 2026

Quick Facts

CategoryTechnical SEO

Starting priceCustom

Free tierNo

Free trialYes

EnterpriseAvailable

Founded2013

HQBordeaux, France

StageSeries-a

Websiteoncrawl.com

Target Market

Industries

E-commerceJob boardsClassified adsMediaSaaSInsurance