Last updated 20 October 2026
Using Spidor
You may download Spidor from spidor.app and use it free of charge, for personal and commercial work, including audits for your clients.
Don't sell, rename or redistribute Spidor, and don't reverse engineer it.
Crawl responsibly
You're responsible for the websites you crawl. Crawl sites you own or have permission to audit, follow their terms and don't overload anyone's server. Spidor follows robots.txt by default. Leave it on unless the site is yours.
No warranty
Spidor is provided as it is, without warranty of any kind. Its findings are technical measurements to help you, not guarantees about how any search engine will treat your site. To the extent the law allows, we aren't liable for any loss that comes from using Spidor or this website.
Changes
We may update these terms. The date at the top shows the latest version.
Contact
Email hello@spidor.app.