Free · 28 checks
SiteLab: How modern is your site?
SiteLab reads your homepage HTML, HTTP response headers and first two stylesheets, then runs 28 checks across infrastructure, code structure, images, security headers and caching. It also lists the platform, frameworks, libraries, analytics and server/CDN layers it finds, each with its evidence.
What does SiteLab check?
Infrastructure
HTTPS/HSTS, HTTP/2 and HTTP/3, Brotli/Gzip, CDN layer.
Code and structure
HTML5 doctype, lang, charset, viewport, modern CSS, modules/defer, legacy traces, semantic HTML.
Images and assets
WebP/AVIF, lazy-load, srcset, alt text, font source.
Security headers
CSP, X-Content-Type-Options, Referrer-Policy, clickjacking, Permissions-Policy, server version.
Performance and caching
Response time, cache-control, validators, HTML size, external script and style count.
Other tools
How to use SiteLab
- 01
Enter the address
Type the address of the page or site you want to inspect, without https://.
- 02
Wait for the result
The tool reads only public pages; results are usually ready in seconds.
- 03
Share the report
Every report is kept for 30 days behind a link, so you can send it to your team and plan fixes together.
SiteLab is part of Ovipu's free tool set and needs no sign-up. For help interpreting results or applying the recommendations, ask our team for a free pre-analysis.
FAQ
SiteLab: FAQ
Does a low score mean my site is broken?
No. The score measures alignment with current web standards. A low score means a modernization opportunity, not a broken site.
How is technology detected?
Every detection relies on observable evidence in HTML, headers or file paths. Without evidence it says 'not detected' rather than guessing.
Is the whole site scanned?
No. Only the homepage and the first two stylesheets are inspected.