Every European SEO crawler and site audit tool reviewed
Gernsbach, Germany
Founded 2013
Crawler and Monitoring plans on the pricing page (monthly or annual billing, excluding VAT); larger crawls on request
Demo on request
Best for: Technical SEO teams that run big or complex sites
Audisto is a cloud crawler and monitoring service from Audisto GmbH in Gernsbach, Germany. Its pricing table shows unlimited crawls per month and unlimited recrawls of the live URL report on both plans, so the constraint is the size of one crawl, which starts at 10,000 HTML pages and 300,000 URLs. JavaScript rendering is included in the price, and the Monitoring plan adds hourly scheduling with critical alerts.
The company was founded in 2013 as Strucr.com GmbH and renamed in 2015, and it is registered as HRB 716171 at the Amtsgericht Mannheim. According to the vendor, data sits in EU data centers and a data processing agreement is signed with every client. Dedicated validators for canonical tags, hreflang and XML sitemaps sit alongside the crawler. Support runs through email and a knowledge base, there is no desktop edition, and larger tiers need a sales conversation.
What Audisto does well
- No monthly cap on the number of crawls
- JavaScript rendering is part of both plans
- Hourly scheduled crawls and critical alerts on the Monitoring plan
- A data processing agreement is signed with each client
- Separate canonical, hreflang and sitemap validators
Where Audisto falls short
- Entry plans stop at 10,000 HTML pages per crawl
- Email and a knowledge base are the only support channels
- Bigger tiers are priced through sales
- No locally installed version
Standout feature. Audisto is the only tool here whose published plans put no limit on how many crawls run per month and limit only how large each crawl is.
Biddenden, Kent, United Kingdom
Founded 2017
Lite, Pro and Cloud plans on the pricing page (prices load in the browser); Cloud from £95 a month; 14-day free trial
Demo on request
Best for: SEO consultants and agencies that hand audits to clients
Sitebulb turns a crawl into a list of explained, prioritised issues, which is the reason consultants use it for client deliverables. The vendor counts 300+ Hints, and the audit comparison view shows what changed between two crawls. Pro starts from a default limit of 500,000 URLs per audit, adjustable up to 2 million with a warning that your computer may not cope, while the cheapest plan, Lite, stops at 10,000 URLs.
Sitebulb Limited is registered in Kent as company no. 12125600 and has sold the product since 2017. It ships a desktop edition for Windows and Mac plus a cloud edition from £95 a month, with a 14-day trial rather than a permanent free tier. The privacy notice names UK and US data centers for the cloud service and AWS eu-west-2 in London for backups. Desktop prices load in the browser and were not readable from the page source.
What Sitebulb does well
- Each finding is explained and ranked by priority
- Comparing two audits shows what changed
- JavaScript crawling costs nothing extra
- Desktop and cloud versions come from one company
- Connects Google Analytics, Search Console and Sheets
Where Sitebulb falls short
- The vendor is British, outside the EU
- The cloud edition also uses US data centers
- Desktop audits are bound by your own memory
- Prices appear only once the page script runs
Standout feature. Sitebulb attaches a written explanation and a priority to every issue it finds, so the output reads as a report rather than a data table.
Tallinn, Estonia
Founded 2018
Growth from €299 a month (500K crawled URLs a month); Pro €699, Ultra €1,359, Unlimited on request
Demo on request
Best for: Large sites that need crawl and log data side by side
JetOctopus, run by Jet Octopus OÜ in Tallinn, combines a JavaScript crawler, a log analyzer, Google Search Console history of 16+ months and GA4 data. Its log analyzer follows GPTBot, ClaudeBot and PerplexityBot next to Googlebot, which is how a site owner sees whether AI crawlers fetch the pages that matter. Seats and projects are unlimited on every plan; the meter is crawled URLs and log lines per month.
Growth costs €299 a month for 500K crawled URLs, Pro €699 and Ultra €1,359, with an Unlimited tier on request, and a free trial needs no credit card. The company started in 2018, has registry code 14483580 and VAT number EE102739949 according to its footer and privacy policy. Servers are described as being in secure countries without a named location, and the entry plan keeps data for 12 months.
What JetOctopus does well
- Crawler, logs, Search Console and GA4 sit in one workspace
- No per-seat or per-project fees
- Logs show AI bots as well as Googlebot
- Estonian company with registry code and address
- The trial does not ask for a credit card
Where JetOctopus falls short
- The entry price is €299 a month
- Crawl volume is a monthly allowance
- No country is given for data storage
- The entry plan keeps 12 months of data
Standout feature. JetOctopus shows in one interface which AI bots such as GPTBot, ClaudeBot and PerplexityBot request a site, alongside Googlebot.
Choisy-le-Roi, France
Pricing on request (demo booking)
Demo on request
Best for: Large French and European sites with crawl-budget questions
Seolyzer is a French crawler and log analyzer from Seolyzer SAS in Choisy-le-Roi. The crawler page states crawls of up to 50 million URLs at 1,000 URLs per second, and the analysis lays crawl, log and Search Console data over one another, with internal PageRank and orphan page detection on top. Logs are analysed in real time, and users and shares are unlimited.
Seolyzer's legal notice says data is hosted in France, is not passed to third parties and that no personal data from logs is stored. The website itself runs on OVH. The pages checked give no founding year, no registration number, and no prices; budgeting starts with a demo booking. The interface exists in English and French only, and retention periods and certifications are not described.
What Seolyzer does well
- Logs are analysed as they arrive
- A single crawl can reach 50 million URLs
- Hosting in France, per the legal notice
- Any number of users and shares
- Crawl, log and Search Console data are cross-analysed
Where Seolyzer falls short
- Plan prices are not published
- Only English and French interfaces exist
- Retention and certifications are not described
- A smaller company than the enterprise suites
Standout feature. Seolyzer states that its log analysis stores no personal data from the logs, a claim that matters because server logs hold visitor IP addresses.
Henley-on-Thames, United Kingdom
Founded 2010
Free for up to 500 URLs / GBP 199 per year for unlimited
Demo on request
Best for: Technical audits on any site, from a small business to an enterprise estate
Screaming Frog SEO Spider is the desktop crawler that most technical SEOs already have installed, made by Screaming Frog Ltd of Henley-on-Thames, which started in 2010. The crawl runs on your own computer, so staging sites, intranets and sections behind a login need no upload to a vendor. It runs on Windows, macOS and Ubuntu, and a JavaScript rendering mode handles client-rendered pages.
The free version crawls up to 500 URLs, and an unlimited annual licence costs GBP 199 according to the tool page, with API integrations and scheduling in the paid version. Google Analytics, Search Console and PageSpeed Insights data can be joined to each URL, and a separate Log File Analyser covers server logs. There are no keyword, rank or backlink features, large crawls need a well-specified machine, and the spreadsheet-style interface takes time to learn.
What Screaming Frog does well
- Crawls stay on your machine, nothing is uploaded
- Widely used as the default technical audit tool
- GBP 199 a year with no URL limit
- JavaScript rendering plus API connections
- A free version up to 500 URLs
Where Screaming Frog falls short
- No keyword, ranking or backlink data
- Big crawls need a powerful computer
- A dense interface with a steep learning curve
Standout feature. Screaming Frog is the only tool here where the vendor never receives the crawl at all, because the software runs entirely on the user's own computer.
Bordeaux, France
Founded 2015
From about EUR 69/month for small sites; enterprise pricing on request
Demo on request
Best for: Large e-commerce, publishing and marketplace sites with indexation problems
OnCrawl, a platform from Cogniteev in Bordeaux that dates from 2015, joins its own crawl to your server logs and to business data you feed in. That lets it say, for example, that out-of-stock products take a share of crawl budget or that old articles are crawled but earn nothing. Segmentation and comparison across crawls are built for sites with millions of URLs.
According to its tool page the data stays in the EU and prices started from about EUR 69 a month for small sites, with enterprise pricing on request; the vendor no longer publishes a price list.
The same page advises that below roughly 50,000 URLs the log analysis seldom justifies the cost and that Screaming Frog covers the audit more cheaply. Log access has to come from whoever runs the hosting, which is often the slowest part of setup, and there is no keyword or backlink research.
What OnCrawl does well
- Crawl results are matched against real server logs
- Business data such as margin or stock can segment the site
- Designed for millions of URLs
- Compares one crawl with the previous one
- French company with EU data
Where OnCrawl falls short
- Costs more than a small site can justify
- Needs access to server logs
- Keyword and backlink research are absent
Standout feature. OnCrawl lets a team segment crawl results by internal business fields such as margin, stock level or article age, which turns an SEO finding into a commercial argument.
Paris, France
Founded 2012
Pricing on request (demo)
Demo on request
Best for: Enterprise retailers and publishers with millions of pages
Botify is an enterprise platform from Botify SAS in Paris, registered as RCS Paris 519 350 813 and founded in 2012. Its SiteCrawler reports on 1,000+ technical indicators and, according to the vendor's crawler page, renders JavaScript with the same engine as Googlebot. A log analyzer sits in the same platform, and AlertPanel, ActionBoard, RealKeywords and AI visibility reporting widen it beyond crawling.
The about page lists six entities and offices in New York, London, Paris, Singapore, Sydney and Tokyo, so the company on an order form may not be Botify SAS. The legal page names Amazon Web Services Inc. of Seattle as web host. Pricing is on request after a demo, and a team that needs only a crawler would pay for products it does not use.
What Botify does well
- Pages are rendered with the engine Googlebot uses
- More than 1,000 technical indicators per crawl
- No crawl limit stated for enterprise crawls
- The log analyzer lives in the same product
- A French SAS with a register number
Where Botify falls short
- Prices are not published
- More platform than a plain crawler needs
- The contracting entity among six must be confirmed
- Purchase starts with a demo
Standout feature. Botify is the only tool on this list that says its crawler renders pages with the same engine as Googlebot.
Katwijk, Netherlands
Small $49, Medium $99, Large $199 a month (monthly billing); free trial for 6 weeks
Demo on request
Best for: Freelancers, consultants and small agencies with sites under 5,000 pages
SiteGuru is a Dutch audit tool from Katwijk, listed under Chamber of Commerce number 82462453, whose about page names Rick van Haasteren as founder. Every plan includes every feature, among them technical audit, indexation report, sitemap optimisation, structured data check, internal link optimisation and Shopify checks. The plans differ only in websites (5, 15 or 50), competitor analyses per month and support level.
Prices are $49, $99 and $199 a month, charged in US dollars, with unlimited users and a free trial of six weeks. Reports are sorted into fixes with white-label output for client work. The page limit is 5,000 pages per site on all plans. The pages checked name no legal form, hosting location or data processing terms, and there is neither log analysis nor a desktop crawler.
What SiteGuru does well
- Every plan includes every feature
- Users and client seats are unlimited
- A free trial of six weeks
- Findings are sorted into a to-do list
- Dutch business with a Chamber of Commerce number
Where SiteGuru falls short
- A ceiling of 5,000 pages per site on all plans
- Prices are quoted in US dollars
- Hosting and GDPR terms are missing from the pages checked
- No analysis of server logs
Standout feature. SiteGuru gives the same feature set to its $49 plan as to its $199 plan and differs only in the number of websites, competitor analyses and support.
Bayreuth, Germany
Founded 2014
Free tier (1 project, 1,000 pages) / Premium from about EUR 50/month
Demo on request
Best for: Small businesses, freelancers and German-speaking SMEs
Seobility is a German SEO suite from Seobility GmbH in Bayreuth, founded in 2014, that bundles a site audit with rank tracking, backlink analysis and on-page checks. The free tier gives one project and up to 1,000 crawled pages, which is enough to maintain a small business site. Premium costs around EUR 50 a month and adds more projects, larger crawls, TF*IDF content analysis and white-label PDF reports.
Data is hosted in Germany under a German data processing agreement, according to the tool page, which removes a common procurement question for SMEs there. Documentation and keyword data are strongest for German-language markets. Backlink and keyword databases are small compared with the large suites, enterprise features are missing, and the vendor lists AI Visibility Tracking as coming soon.
What Seobility does well
- A free tier that supports real work on a small site
- Audit, rankings and backlinks for about EUR 50 a month
- German hosting with a German processing agreement
- TF*IDF content comparison is included
- White-label PDF reports on paid plans
Where Seobility falls short
- Backlink and keyword databases are small
- Coverage drops outside German-language markets
- No enterprise features or deep SERP history
Standout feature. Seobility is the one tool in this group that pairs a permanent free audit tier with German hosting and a German data processing agreement.
České Budějovice, Czech Republic
Starter €19, Basic Miner €34, Digger €69, Machine €114 a month excluding VAT; 10-day free tier
Demo on request
Best for: Agencies that audit by uploading lists of URLs
Marketing Miner is a Czech SEO suite from Marketing Miner s.r.o. in České Budějovice, company ID 062 78 990. Its SEO Audit section collects more than ten bulk checkers, among them status codes, indexing, broken links, hreflang, structured data and indexability, that run on URLs you supply. It does not discover pages by following links, so it does not replace a crawler for link graphs or rendering checks.
Plans cost €19 (Starter), €34 (Basic Miner), €69 (Digger) and €114 (Machine) a month excluding VAT, with a 10-day free tier. The same account includes keyword research and rank tracking, a REST API and an MCP connection. A data processing agreement is published, but the hosting location is not stated. Report credits and tracked keyword counts shape what a plan can do, and AI visibility credits are absent from the listed plans.
What Marketing Miner does well
- More than ten audit checkers under one login
- Entry plan at €19 a month
- Czech company with company ID and address
- A data processing agreement is published
- REST API and MCP connection
Where Marketing Miner falls short
- No crawler that discovers pages itself
- Credits restrict large bulk checks
- Listed plans carry no AI visibility credits
- Hosting country is not stated
Standout feature. Marketing Miner checks lists of URLs for status, indexing, hreflang and structured data from inside a keyword and rank-tracking suite priced from €19 a month.
UK (Leeds named in the terms), United Kingdom
Freelancer £24.99, Small Team £34.99, Agency £59.99, Large Agency £149.99 a month; annual billing gives two months free
Demo on request
Best for: Agencies that guard client sites against accidental changes
Little Warden is a UK monitoring tool, founded by Dom and Heather Hodgson, that runs 30+ checks on chosen URLs and alerts you when something changes. Typical triggers are a robots.txt edit, a broken redirect, a missing tracking tag, a Core Web Vitals regression or a domain nearing expiry. Plans are measured in URLs patrolled, from 20 on Freelancer to 5,000 on Large Agency, and it does not look for broken links or orphan pages.
Freelancer costs £24.99, Small Team £34.99, Agency £59.99 and Large Agency £149.99 a month, with two months free on annual billing. There is a 40-day trial without a card and a 30-day money-back guarantee, and the API is available from Small Team upward. The terms point to the courts of Leeds, but the legal entity, hosting location and GDPR terms are not stated on the pages checked.
What Little Warden does well
- More than 30 different change checks
- Entry plan at £24.99 a month
- Forty days of trial and no card required
- API access from the Small Team plan
- Every check has its own documentation
Where Little Warden falls short
- Watches chosen URLs, not an entire site
- The legal entity is not named on the pages checked
- No hosting country is stated
- Small URL counts on the lower plans
Standout feature. Little Warden is built around the accidents that follow a deployment, such as a robots.txt change, rather than around finding problems in a full site crawl.
