Open-source website inspection tool

Inspect a website's infrastructure in seconds.

Analyze DNS, TLS, security headers, metadata, hosting and technical signals in one readable report.

Try:

View source on GitHub Read the documentation Compare reports Privacy License

No account · No tracking · Passive checks only

See what a report looks like

A real InfraLens scan of this very site — captured once, not re-run on every visit.

Example — randy-code.dev

94/100 · Strong configuration signals

randy-code.dev

https://randy-code.dev/

At a glance

Worth fixing first

HTTP Security Headers — 1 present but weak recommended security header(s).

Working well

HTTPS & TLS — HTTPS is properly configured.
DNS Security — SPF and DMARC records are present.
Redirect Behavior — No redirects detected.

3 checks above aren't counted here (informational, unavailable, or a technical error) — see the categories below.

This is a snapshot of public, automatically checkable signals, not a complete security or quality assessment.

A few checks, straight from the real report

HTTP Security Headers

+10 ptsWarning

1 present but weak recommended security header(s).

Completed in 1ms

HTTPS & TLS

+18 ptsPass

HTTPS is properly configured.

Completed in 60ms

robots.txt

+4 ptsPass

robots.txt is present and appears valid.

Completed in 211ms

What it checks

HTTP & Security

4 checks

Security headers, HTTPS, redirects, security.txt

Network & DNS

5 checks

DNS records, security, DKIM, DNSSEC, IP & hosting

Infrastructure

1 check

WAF & CDN detection

Website Structure

3 checks

robots.txt, sitemap, links

Metadata & Stack

5 checks

HTML metadata, social tags, tech stack, accessibility

Performance

2 checks

Response metrics, reachability

Open source, all the way down

The full source is public — read exactly what gets checked, how the score is computed, and what leaves your browser.

MIT licensed

Free to use, modify, and redistribute.

Modular architecture

Each check is its own module — read exactly how it works.

Self-hostable

Run it on your own infrastructure, no InfraLens account.

Contributions welcome

Issues, pull requests, and ideas are welcome on GitHub.

View source on GitHub