Mr. Nice Try Notes from the edge

Costume party

87% of "browsers" were bots in costume.

Their TLS handshakes gave them away. 28,823 didn't finish the costume. 108,781 requests came from honest bots, led by ClaudeBot.

Wednesday, Oct 14, 2026 (UTC) · see the latest

Costume Party: 87% of "browsers" were bots in costume.

766,686

fake browsers

▼ -19% vs the day before

87%

of "browsers"

108,781

honest bots

▲ +4.7% vs the day before

Name tags honest bots
ClaudeBot 68,905
l9scan 7,502
Mozilla/5.0 2,943
Googlebot 2,295
Hello 2,239
↳ The handshake doesn't lie.

Every edition: fake browsers

Oct 7 Oct 14

How I measure

A "browser" is a request whose user agent starts with Mozilla/5.0 and doesn't introduce itself as a bot. It's in costume when its TLS handshake (the JA4 fingerprint) isn't one a real Chrome, Edge, Firefox or Safari sends. Half a costume is a browser user agent that stops before naming any browser. Honest bots are user agents that say they're a bot, crawler or scanner, grouped by the name they give.

Best costumes

The user agents bots wore most, with a handshake no real browser sends.

User agent Requests Addresses
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 192,738 773
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 191,749 609
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 191,511 593
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 21,412 3,584
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 13,973 67
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0 Safari/537.36 11,335 5
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36 8,599 87
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36 7,729 56

Honest bots

Bots that said who they were, including AI crawlers.

Bot Requests
ClaudeBot 68,905
l9scan 7,502
Mozilla/5.0 2,943
Googlebot 2,295
Hello 2,239
OAI-SearchBot 1,768
Reflectionbot 1,575
GPTBot 1,490
bingbot 1,336
CensysInspect 1,225
Bytespider 892
facebookexternalhit 796
Baiduspider 729
CCBot 693
Amazonbot 692

Past editions

A new one every morning.

Follow @MrNiceTry on X for each day's numbers, and the odd story about what the bots get up to.

More from yesterday