Best SEO Audit Software in 2026
Updated
In short: Screaming Frog SEO Spider is ranked #1 of 35 as of 7 October 2026, ahead of WebSite Auditor and A1 Website Analyzer. The best-ranked option with a free plan is WebSite Auditor. The lowest first paid tier on this page is Checkbot at $0.83/mo.
SEO audit software can help you examine site pages for technical issues and assess search visibility. Compare JavaScript crawling and on-page audits with search visibility audits to understand the coverage each option offers. Pages per crawl and scheduled audits can matter when you need to review larger sites or revisit them regularly; API access may also suit your workflow. Consider free-plan availability and paid-from pricing alongside these capabilities. Screaming Frog SEO Spider, WebSite Auditor, and A1 Website Analyzer are among the named options. Think about your site’s scale and the kinds of audits you need when comparing them.
35 SEO audit software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
15 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | Screaming Frog SEO SpiderWindows · Mac · Linux · API | Three bars | — | 3 of 6 | Free | 6.6 | |
| 2 | WebSite AuditorWindows · Mac · Linux | Three bars | — | 3 of 6 | $12.42/mo | 6.6 | |
| 3 | A1 Website AnalyzerWindows · Mac | Two bars | — | 2 of 6 | $49/mo | 6.5 | |
| 4 | CheckbotWindows · Mac · Linux · Extension | Three bars | — | 3 of 6 | $0.83/mo | 6.5 | |
| 5 | Netpeak SpiderWindows · Mac | Two bars | — | 2 of 6 | Free | 6.5 | |
| 6 | OxideSEOWindows · Mac · Linux | Three bars | — | 3 of 6 | Free | 6.5 | |
| 7 | TechSEO360Windows · Mac | Two bars | — | 2 of 6 | $6.58/mo | 6.5 | |
| 8 | CrawlRavenWeb · API · Extension | Two bars | — | 1 of 6 | Free | 6.4 | |
| 9 | GeolifyWeb · API | Two bars | — | 1 of 6 | $23/mo | 6.4 | |
| 10 | SEO CrawlerWeb · API | Two bars | — | 1 of 6 | $19/mo | 6.4 | |
| 11 | Website CrawlerWeb · API | Two bars | — | 1 of 6 | $10/mo | 6.4 | |
| 12 | FreeCrawlWindows · Mac · Linux | Two bars | — | 3 of 6 | Free | 6.3 | |
| 13 | SEO OtterWeb | Two bars | — | 1 of 6 | Free | 6.3 | |
| 14 | SEO PowerSuiteAPI | Two bars | — | 0 of 6 | $29.08/mo | 6.3 | |
| 15 | LighthouseWeb · Windows · Mac · Linux · Extension | Two bars | — | — | 4 of 6 | — | 5.6 |
| 16 | GreenflareWindows · Mac · Linux | Two bars | — | — | 3 of 6 | — | 5.4 |
| 17 | Open SEO CrawlerWeb · Windows · Mac · Linux · Self-hosted | Two bars | — | 4 of 6 | Free | 5.4 | |
| 18 | SiteGuruWeb | One bar | — | — | 1 of 6 | $49/mo | 5.4 |
| 19 | Beam Us UpWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 5.3 |
| 20 | BotifyAPI | One bar | — | — | 0 of 6 | — | 5.3 |
| 21 | CrabWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 5.3 |
| 22 | CrawlCenterWeb | One bar | — | — | 1 of 6 | — | 5.3 |
| 23 | SeobilityAPI | One bar | — | — | 0 of 6 | — | 5.3 |
| 24 | OncrawlAPI | One bar | — | — | 0 of 6 | — | 5.2 |
| 25 | Website GraderWeb | No signal | — | — | 1 of 6 | — | 5.2 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Pages per crawl | Scheduled audits |
|---|---|---|---|---|---|---|---|---|
| 1 | Screaming Frog SEO Spider | 6.6 | Free plan | — | Yes | — | — | — |
| 2 | WebSite Auditor | 6.6 | Free plan | $12.42/mo | Yes | — | — | Yes |
| 3 | A1 Website Analyzer | 6.5 | Free plan | $49/mo | Yes | — | — | — |
| 4 | Checkbot | 6.5 | Free plan | $0.83/mo | Yes | 10 /mo | 10,000 pages/crawl | — |
| 5 | Netpeak Spider | 6.5 | Free plan | — | Yes | — | — | — |
| 6 | OxideSEO | 6.5 | Free plan | Free | — | — | — | — |
| 7 | TechSEO360 | 6.5 | Free plan | $6.58/mo | Yes | — | — | Yes |
| 8 | CrawlRaven | 6.4 | Free plan | Free | Yes | — | — | Yes |
| 9 | Geolify | 6.4 | Free plan | $23/mo | Yes | 23 /mo | 50 pages/crawl | Yes |
| 10 | SEO Crawler | 6.4 | Free plan | $19/mo | Yes | 19 /mo | — | — |
| 11 | Website Crawler | 6.4 | Free plan | $10/mo | Yes | 20 /mo | — | Yes |
| 12 | FreeCrawl | 6.3 | Free plan | Free | Yes | — | — | — |
| 13 | SEO Otter | 6.3 | Free plan | Free | Yes | — | — | — |
| 14 | SEO PowerSuite | 6.3 | Free plan | $29.08/mo | Yes | — | — | — |
| 15 | Lighthouse | 5.6 | No | — | — | — | — | — |
| 16 | Greenflare | 5.4 | No | — | Yes | — | — | — |
| 17 | Open SEO Crawler | 5.4 | Free plan | Free | Yes | — | — | — |
| 18 | SiteGuru | 5.4 | No | $49/mo | Yes | 49 /mo | — | — |
| 19 | Beam Us Up | 5.3 | No | — | Yes | — | — | — |
| 20 | Botify | 5.3 | No | — | — | — | — | — |
| 21 | Crab | 5.3 | No | — | Yes | — | — | — |
| 22 | CrawlCenter | 5.3 | No | — | Yes | — | 2,000 pages/crawl | — |
| 23 | Seobility | 5.3 | No | — | Yes | — | — | — |
| 24 | Oncrawl | 5.2 | No | — | — | — | — | — |
| 25 | Website Grader | 5.2 | No | — | Yes | — | — | — |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which SEO audit software is ranked first on Freedom251?
Screaming Frog SEO Spider is ranked #1 of 35 with a score of 6.6. WebSite Auditor is second and A1 Website Analyzer third.
How many of these have a free plan?
15 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Checkbot has the lowest first paid tier we found: $0.83/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.