ProbeLayer.tools

Is it
Actually Down?

Most tools just say "yes" or "no". We check the entire path - from the address to the security - to find exactly why you can't connect.

Simple Diagnostics v2.4
Connection Progress Ready
Website Address Standby
Security Check Standby
Path Following Standby
Site Response Standby
What we check

Layer
by layer.

We trace the exact path your browser takes. When something breaks, we show you precisely where.

01

Address Check

DNS resolution — confirms the domain maps to a real server address.

02

Security Check

TLS handshake — verifies the certificate is valid, trusted, and not expired.

03

Path Check

Redirect chain — follows every hop to confirm you reach the intended destination.

04

Loading Check

HTTP response — confirms the server is alive and returning a valid status.

05

Official Reports

Incident feeds — cross-references known outages from the service's own status page.