OptervaBot
OptervaBot checks whether the sites in our launch-destination registry are still reachable. If it has been visiting you, this page explains exactly what it does and how to stop it.
To stop it
Add this to your robots.txt and OptervaBot will not fetch your site again:
User-agent: OptervaBot
Disallow: /It is read before every check, so this takes effect on the next run. Your site stays in our registry — it is simply recorded as one we do not check, rather than one that failed.
What it fetches
Your /robots.txt, then your homepage — nothing else. It reads at most the first 24 KB of the page and then stops the transfer. It does not crawl, follow links, submit forms, or log in.
How often
Once a day at most, as one request. Checks run one at a time with a pause between sites, so we never send you more than a single request in a run.
Why it exists
Opterva keeps a registry of launch destinations and publishes what it finds about each one. Directories die quietly — a site goes offline, or starts charging for what it advertises as free — and a list nobody verifies goes on naming it anyway. OptervaBot is how we notice.
It does not rank your site, score it, or judge whether it is worth anyone’s time. It records whether you answered.
What a failed check does not mean
If your site refuses OptervaBot, we record that we were refused. We do not treat it as evidence that your site is broken or unusable, and we do not downgrade you for it — blocking bots is normal and sensible. Only a site that answers nothing at all, repeatedly, is marked as unreachable.
Its user agent
OptervaBot/1.0 (+https://opterva.com/bot; destination availability check)Before September 2026 it identified itself as AtlasBot. Rules you wrote for that name are still honoured; you do not need to change them.
Questions, or want your site removed from the registry entirely?
support@opterva.com