No. You see 1e100.net because something reverse-looked-up a Google server's IP address.
When you look up the owner of a Google IP address, you get a name like fra16s48-in-f14.1e100.net.
The name is a joke: 1e100 is 1 × 10¹⁰⁰, a googol. You rarely connect to 1e100.net by that name; it appears in reverse lookups, traceroutes and network monitors that show PTR names. The prefix often encodes the location: 142.250.185.78 resolves to fra16s48-in-f14.1e100.net, where fra is Frankfurt's airport code.
Facts
- Owner
- Served by
- Google's servers (reverse DNS names)
- Purpose
- 1e100.net is the domain Google uses to name its servers in reverse DNS. When you look up the owner of a Google IP address, you get a name like fra16s48-in-f14.1e100.net.
- Block it?
- Don’t block it
Which apps use it
- Any app using Google services
- Network tools showing reverse DNS
Should you block it?
No. You see 1e100.net because something reverse-looked-up a Google server's IP address. The connection itself goes to a Google service such as Search, YouTube or Gmail.
Frequently asked questions
What is 1e100.net?
Google's domain for naming its servers in reverse DNS. 1e100 is scientific notation for a googol, 10 to the power of 100.
Why does 1e100.net appear on my Mac?
A tool or app did a reverse lookup on a Google IP address. The underlying connection is to a Google service you use.
Should I block 1e100.net?
No. Blocking it doesn't block Google: apps connect by IP after a normal DNS lookup. It can confuse tools that show names.