Live
Website speed test
Core Web Vitals, Lighthouse scores and the top fixes for any URL.
Free tools
Engineer-grade checks, free for everyone.
The same tools our team uses in audits, packaged so anyone can check their site in seconds. The speed test is live; the rest launch one by one, so join the list to hear first.
Coming soon
SEO checker
Titles, meta, headings, schema, indexability and internal links.
Coming soon
SSL checker
Certificate validity, chain, expiry date and protocol support.
Coming soon
DNS lookup
A, AAAA, MX, TXT, CNAME and SPF/DMARC records at a glance.
Coming soon
Tech stack detector
See the frameworks, CMS, analytics and hosting behind any site.
Coming soon
Uptime check
Check if a site is up from multiple regions right now.
Get notified at launch
We'll email you when each tool goes live. One email per launch, nothing else.
Can't wait? Get a manual audit.
An engineer will review your site's speed, SEO and security and send a prioritised fix list — free.