What is 37 Audits used for?

37 Audits is a website monitoring and audit platform that checks SEO, security, performance and AI readiness and sends alerts. It is a good fit for catching expired certificates or broken redirects early, and monitoring SEO and security basics.

Yes. 37 Audits has a free plan, and paid plans start at $12 per month.

Is 37 Audits open source?

No. 37 Audits is proprietary (closed-source) software and can't be self-hosted. In the Marketing & SEO category, open-source options include OpenSEO, GEOFlow and Dub.

What are some alternatives to 37 Audits?

37 Audits competes with SEOptimer, Sitebulb and Lumar.

37 Audits: features, pricing and alternatives

About 37 Audits

37 Audits is a hosted platform that audits websites and monitors them continuously. It runs automated checks covering security, performance, SEO, accessibility, resilience and readiness for AI crawlers, and reports whether each check passes or fails.

Users add URLs to a project, choose which auditors to run and how often, from every three minutes to once a day, and pick who receives status-change emails. Individual auditors cover items such as TLS certificates, content security policy, cookies, redirects, HTTP versions, image alt text, LLMs.txt, sitemaps and page titles. Sites behind basic authentication are supported.

Visitors can run a few audits for free without signing up, while continuous monitoring and the full set of more than 50 auditors require an account and plans. It is a hosted commercial service, so nothing needs to be installed on your own servers.

Key features

On-demand audits of any website URL
Scheduled monitoring as often as every 3 minutes
Email alerts when a check fails
Auditors for SEO, security and performance
LLMs.txt and sitemap checks
Support for sites behind basic auth

Good fit for

→Catching expired certificates or broken redirects early
→Monitoring SEO and security basics

Tags: website-audit; monitoring; seo; security; performance; accessibility; alerts

37 Audits: questions and answers

What is 37 Audits used for?: 37 Audits is a website monitoring and audit platform that checks SEO, security, performance and AI readiness and sends alerts. It is a good fit for catching expired certificates or broken redirects early, and monitoring SEO and security basics.
Is 37 Audits free?: Yes. 37 Audits has a free plan, and paid plans start at $12 per month.
Is 37 Audits open source?: No. 37 Audits is proprietary (closed-source) software and can't be self-hosted. In the Marketing & SEO category, open-source options include OpenSEO, GEOFlow and Dub.
What are some alternatives to 37 Audits?: 37 Audits competes with SEOptimer, Sitebulb and Lumar.