LogysteraBot

What LogysteraBot is

LogysteraBot is the external monitoring probe operated by Logystera. It checks, from outside, whether a website is reachable and healthy. It identifies itself with this user agent:

LogysteraBot/1.0 (+https://logystera.com/probe)

You are seeing it in your logs because someone responsible for that site signed up for Logystera and asked us to watch it from the outside. We only probe hosts a customer has registered with us.

What it actually requests

One probe is about five network operations against your infrastructure:

• DNS lookups for the host (A, AAAA and NS records)
• A TCP connection
• A TLS handshake, to read the certificate and its expiry
• A single HTTP HEAD request to the site root
• If the root redirects, it follows the chain, at most ten hops

It uses HEAD only. It does not download page bodies, does not crawl links, does not submit forms, does not log in, and never sends POST. It reads response headers, status codes and connection timings — nothing else. A probe gives up after 10 seconds per phase and 30 seconds overall.

How often it runs

By default a given site is probed about once every five minutes, in the same spirit as any uptime checker. Probing pauses automatically after 60 days without activity on the account, and stops entirely when the site is removed or the account is closed.

If you want to allow it

Match the user agent string LogysteraBot and allow it. This is the reliable way, because our probes run on cloud infrastructure without a fixed set of egress IP addresses, so an IP allowlist would not stay accurate.

If your security policy requires cryptographic proof of identity rather than a user agent string, please get in touch — we would rather work with you than have our checks silently blocked.

If you want it to stop

The quickest route is the site owner: whoever added the site to Logystera can remove it, and probing stops immediately.

You can also contact us with the hostname and we will stop probing it.

LogysteraBot does not read robots.txt. It is not a crawler and it does not collect content; it performs availability and certificate checks that a site operator explicitly asked for, in the same way an uptime monitor does. If our probes are unwelcome, the two routes above are the way to stop them.

What we do with it

Results are stored as facts about that one site — reachable or not, response timings, certificate expiry, redirect behaviour, DNS answers — and shown to the customer who registered it. Nothing is shared with anyone else, and no content from your pages is collected.

Questions

If something about this probe is causing you trouble, tell us and we will fix it: logystera.com/contact.