SiteAuditLint comparisons
SiteAuditLint is installed on Windows. Seobility runs entirely in the browser.
Seobility is a German, browser-based SEO platform: you add a website as a project, its crawler scans the site on Seobility's servers, and you get an on-page optimization score with issues grouped by area, plus keyword ranking monitoring and backlink tools on paid plans. Nothing to install, and the free Basic plan never expires.
Screaming Frog and SiteAuditLint take the opposite approach. You install a crawler, it runs from your computer, and the results are stored locally. That changes how crawl limits work, what the free tier covers, and what you pay as your sites or client list grow.
Screaming Frog vs Seobility vs SiteAuditLint: at a glance
| Feature | Screaming Frog | Seobility | SiteAuditLint |
|---|---|---|---|
| How you use it | Installed desktop app | Web app in your browser | Installed desktop app |
| Platform | Windows, macOS, Linux | Any browser | Windows |
| Free plan | Yes, 500 URLs per crawl | Basic: 1 project, 1,000 pages per crawl | Yes, 100 URLs per audit |
| Paid crawl limit | Unlimited, bound by hardware | 25,000 pages per crawl on Premium, 100,000 on Agency | Unlimited URLs |
| Website limit | None | 1, 3 or 15 projects by plan | None |
| Entry paid price | $279/year (£199) | Premium €49.90/month | $99 one-time |
| Billing | Annual licence per user | Monthly or annual subscription | One-time purchase |
| Keyword ranking monitoring | No | Yes, 10 to 1,500 keywords by plan | No |
| Where data lives | Your computer | Your Seobility account | Your computer |
Seobility figures are from its published plans, checked October 2026, and are priced in euros plus VAT. Screaming Frog's unlimited crawl depends on memory and storage.
Free plans compared: what each one actually covers
All three tools have a free tier you can keep using, which is unusual in this category. They are generous in different directions.
| Free tier | Screaming Frog Free | Seobility Basic | SiteAuditLint Free |
|---|---|---|---|
| Pages per crawl | 500 URLs | 1,000 pages | 100 URLs |
| Number of websites | Any | 1 project | Any |
| Re-crawl frequency | Whenever you like | Waiting time between re-crawls | Whenever you like |
| Feature access | Core crawl, paid features locked | Basic on-page analysis, 10 tracked keywords | All 76 checks |
| Exports | Yes | In the web app | Pages and Issues CSV |
Seobility Basic crawls the most pages for free, but on one website and with a wait between re-crawls. Screaming Frog Free and SiteAuditLint Free crawl fewer pages but any number of sites, as often as you want, which suits quick checks of client prospects or competitor pages. SiteAuditLint Free runs the same checks as the paid editions; the difference is the 100-URL cap and CSV-only exports.
Projects and pages per crawl: how the limits scale
Seobility limits two things at once: how many website projects you can hold and how many pages each crawl analyzes. Desktop crawlers limit neither on a paid licence.
| Seobility plan | Projects | Pages per crawl | Tracked keywords | Price |
|---|---|---|---|---|
| Basic | 1 | 1,000 | 10 | Free |
| Premium | 3 | 25,000 | 300 | €49.90/month or €479/year |
| Agency | 15 | 100,000 | 1,500 | €179.90/month or €1,727/year |
Extra projects are sold as monthly add-ons. For a freelancer auditing a handful of small sites, Premium's three projects may be enough. For an agency rotating through many client sites, project slots become the constraint, whereas SiteAuditLint and Screaming Frog crawl any site without registering it first.
Seobility's cloud crawler also brings advantages: crawls keep running when your laptop is closed, paid plans re-crawl automatically, and JavaScript crawling is included on paid plans. SiteAuditLint covers the same ground locally with optional Chromium rendering and headless scheduled audits through Windows Task Scheduler.
On-page optimization scores vs prioritized fix lists
Seobility's headline output is an on-page optimization score, broken down into technical setup, structure, and content, with each issue explained in plain language. It is designed for website owners who want a single number to improve.
SiteAuditLint also scores the site, with an overall health score and category scores, but turns the findings into an Action Plan: every fix ranked by impact, effort, and the number of affected URLs, exportable as CSV for a developer or client. Screaming Frog leans towards raw data, giving you filters and exports to build your own prioritisation.
Health score and category scores
Action Plan ranked by impact and effort
Tracking and pixel checks: a gap most SEO audit tools leave
SiteAuditLint 0.8.0 audits analytics and marketing tags alongside SEO issues, which neither Screaming Frog nor Seobility offers as a built-in report. The tracking checks flag:
- Pages with no analytics or tag manager, or missing the tag found on the rest of the site.
- More than one GA4 property, a different GA4 ID than the rest of the site, or GA4 sent by both page code and GTM.
- Tags or pixels loaded twice, page views sent twice on one load, and leftover Universal Analytics code.
- GTM containers that are unpublished or use the wrong ID, and tags hard-coded outside GTM.
- Tracking without a consent tool, tracking that fires before consent, and personal data or tokens in URLs.
With JavaScript rendering switched on, SiteAuditLint also records which tags actually fire, the dataLayer, and the cookies set before consent. Screaming Frog can approximate some of this with custom search rules you write yourself.
Pricing: free forever, subscription, or one-time
Screaming Frog
Free: 500 URLs per crawl
Annual licence per user.
Seobility
Premium, or €479/year. Basic is free
Subscription with project and page limits. 14-day Premium trial.
SiteAuditLint
Free: 100 URLs per audit
One-time Pro licence, unlimited URLs. Agency $159 once.
| Period | Screaming Frog | Seobility Premium (annual) | SiteAuditLint Pro |
|---|---|---|---|
| Year 1 | $279 | €479 | $99 |
| Year 3 total | $837 | €1,437 | $99 |
One user, list prices held constant, before VAT. Seobility's subscription includes keyword ranking monitoring and backlink tools that the desktop crawlers don't offer.
Measuring progress between audits
Seobility shows how your score develops across re-crawls of a project. Screaming Frog compares saved crawl files. SiteAuditLint stores every audit locally and puts the previous run next to the current one, so you see which issue types dropped after a release and which crept back.
Changes since the last audit
Audit history kept on your PC
Which one should you choose?
Screaming Frog
Choose it for deep crawl configuration, custom extraction, and Mac or Linux support, if an annual licence fits your budget.
Seobility
Choose it if you want to audit one site for free in the browser, like a single on-page score, and want rank monitoring in the same account.
SiteAuditLint
Consider it if you audit many sites from Windows, want no project or page caps for a one-time $99, and want tracking and consent checks in the same audit.
Frequently asked questions
Is Seobility free?
Seobility's Basic plan is free with no time limit. It covers one website project, up to 1,000 pages per crawl, and 10 tracked keywords. Premium and Agency are paid subscriptions with more projects and pages per crawl.
Is Seobility better than Screaming Frog?
They suit different users. Seobility runs in the browser with an on-page optimization score and keyword ranking monitoring, which suits site owners who don't want to install software. Screaming Frog is a desktop crawler with deeper crawl configuration and no project limits on its paid licence.
How many pages can Seobility crawl?
Seobility analyzes up to 1,000 pages per crawl on Basic, 25,000 on Premium, and 100,000 on Agency, with 1, 3, and 15 website projects respectively.
Do I need to install Seobility?
No. Seobility is a web app, and its crawler runs on Seobility's servers. Screaming Frog and SiteAuditLint are installed desktop applications that crawl from your own computer.
Does SiteAuditLint have project limits?
No. SiteAuditLint crawls any website without setting up a project first. The Free edition is capped at 100 URLs per audit, and Pro and Agency audit unlimited URLs.
Which tool checks analytics and tracking tags?
SiteAuditLint 0.8.0 includes tracking and pixel checks for GA4, Google Tag Manager, duplicate tags, consent tools, and tracking that fires before consent. Screaming Frog can approximate some of these with custom search rules, and Seobility focuses on on-page SEO.