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OnCrawl

Technical SEO crawler that joins crawl data with server log files

As of 1 September 2026, OnCrawl's pricing is not published; the vendor quotes on request. A French technical SEO platform whose core distinction is log file analysis joined directly to crawl data, showing which pages Googlebot actually visits rather than only which pages a crawler could reach. Softwr lists it under SEO. OnCrawl is made by OnCrawl SAS, available on Web.

Overview

What OnCrawl does

OnCrawl crawls a site the way any technical SEO tool does, checking status codes, canonicals, structured data, internal linking and Core Web Vitals, but its differentiator is ingesting raw server log files and cross-referencing them against the crawl and against Search Console data. That join answers a question crawl-only tools cannot: whether Googlebot is actually spending crawl budget on the pages a site wants indexed, or wasting it on parameterised URLs, redirect chains and orphaned sections the crawl map alone would not flag as urgent. That log analysis capability is why OnCrawl is bought by large sites, publishers and marketplaces with crawl budget problems that a standard site audit does not diagnose, rather than by small sites where Google simply crawls everything anyway. It competes directly with Botify and Lumar, both of which offer the same crawl-plus-log combination, and OnCrawl's position against them is generally lower price and a smaller feature set rather than a unique capability neither competitor has. Pricing is not published; the vendor quotes based on crawl volume, log line volume and data retention period, with third-party estimates suggesting entry tiers in the tens of euros per month scaling to several hundred for mid-market sites and custom quotes for enterprise volumes. A buyer evaluating it should get an exact quote before assuming it is cheaper than Botify or Lumar, since none of the three publish comparable numbers.

What people use it for

  • A large publisher or marketplace diagnosing wasted crawl budget on parameterised or low-value URLs
  • A technical SEO team that needs server log data joined to crawl data, not just a crawl report on its own
  • An enterprise site comparing crawl-plus-log platforms against Botify or Lumar before committing to a multi-year contract
  • A team wanting custom segmentation of crawl and log data without writing SQL against a raw export

The honest half

Where it falls short

Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about OnCrawl.

  • No pricing is published anywhere on the site, so early-stage comparison against Botify or Lumar requires getting quotes from all three before any evaluation can start.
  • Log file analysis requires the customer to actually supply raw server logs, which many marketing teams cannot get from their infrastructure team without a separate internal project.
  • It is a smaller company than Botify, so enterprise buyers evaluating vendor stability and roadmap longevity weigh that against the lower likely price.
  • The interface and terminology assume a working knowledge of crawl budget and log analysis concepts, so it is a poor fit for a generalist marketer without technical SEO background.
  • Data retention periods are tied to plan tier, so historical trend analysis beyond the contracted retention window is not available without upgrading before the data would otherwise be purged.

Cross-shopped

What people choose instead of OnCrawl

Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.

  • OnCrawl logo
    OnCrawl
    vs
    Botify logo
    Botify

    Botify: If you want the same crawl-plus-log combination from a larger, more established enterprise vendor

  • OnCrawl logo
    OnCrawl
    vs
    Lumar logo
    Lumar

    Lumar: If you want crawl and log analysis with a stronger existing presence among large publishers

Pricing

What OnCrawl costs

Taken from the vendor's own pricing page. Prices move, so check before you buy.

OnCrawl

On request

  • Priced by monthly crawl volume, log line volume and data retention
  • Small-site, mid-market and enterprise tiers, all quote-based
  • Free trial available on request
  • No published self-serve price list

Capabilities

Features

  • Log file analysis

    Server log ingestion showing actual Googlebot crawl behaviour by page and directory

  • Crawl and log cross-analysis

    Joined view of crawled, indexed and actually-crawled-by-Google page sets

  • Structured data and Core Web Vitals checks

    Validation and field/lab performance data at the page level

  • Data Explorer

    Custom segmentation and querying of crawl and log data without needing SQL

  • Google Search Console integration

    Blended reporting with clicks, impressions and indexing status

  • API access

    Programmatic export of crawl and log analysis for internal dashboards

Answered, with sources

Questions people ask

Each answer names the page it came from, so you can check it rather than take our word for it.

Do I need to provide my own server logs?

Yes, log file analysis is only available if you can export raw access logs from your web server or CDN; without them OnCrawl functions as a crawler only.

How much does OnCrawl cost?

It is not published. Pricing is quoted based on crawl volume, log volume and retention period; get a quote before comparing it to Botify or Lumar.

Is this suitable for a small business site?

Generally not economically; the log analysis capability that justifies the cost only pays off once a site is large enough that Google is not crawling every page anyway.

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Softwr does not host reviews and shows no star rating for OnCrawl, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.

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