bigsur.ai
bigsur.ai has 52 recorded blocks in October 2026, or 0.8%, and 50 files naming it. The community reference lists its operator as Big Sur AI that fetches website content to enable AI-powered web agents, sales assistants, and content marketing solutions for busi….
Who runs bigsur.ai?
| Fact | bigsur.ai reference entry |
|---|---|
| Operator | “Big Sur AI that fetches website content to enable AI-powered web agents, sales assistants, and content marketing solutions for busi…” |
| Purpose | “AI Assistants” |
| Does bigsur.ai obey robots.txt? | “Unclear at this time.” |
| Frequency | “Unclear at this time.” |
| Cloudflare managed list for bigsur.ai | No |
These facts quote the stored community ai.robots.txt reference.
“bigsur.ai is a web crawler operated by Big Sur AI that fetches website content to enable AI-powered web agents, sales assistants, and content marketing solutions for busi…”
The stated role here is an AI assistant. Using a page as a search result can send people to it. Training models uses its contents for another purpose, which an owner may refuse.
How many sites block it?
Instructions to stay out of the whole site appear in 52 files, or 0.8% of 6,171 readable files. We counted 50 with its name in a User-agent line, a 0.8% share. Another 6,119 lack a recorded Disallow: / ban.
From the highest 1,000 ranks, 552 files could be read. Its naming count is 5, or 0.9%, and the block count is 4. The leading sites have a lower block share, 0.7%. Compare 48 blocks among the 5,619 readable files below those ranks, or 0.9%.
| Readable files | Named by | Named share | Blocked by | Blocked share |
|---|---|---|---|---|
| bigsur.ai, all ranks | 50 | 0.8% | 52 | 0.8% |
| bigsur.ai, top 1,000 | 5 | 0.9% | 4 | 0.7% |
| bigsur.ai, remaining ranks | 45 | 0.8% | 48 | 0.9% |
For this entry, we counted whole-site bans attached to its own name, leaving general rules for all crawlers out of the total. Of 52 blocks, 6 do not also appear in our count of files naming it. Looking just at named files gives 46 blocks and 4 without a whole-site block. For 6,121 readable files, we found no mention by name. We ignore capitalization and repeated names.
How to block or allow it
Add these lines to robots.txt at your site root. For bigsur.ai, the robots.txt standard gives a named group priority over User-agent: *.
Block the whole site
User-agent: bigsur.ai
Disallow: /Allow access
User-agent: bigsur.ai
Allow: /It's the 118th most-named crawler of the 171 we counted in the crawler index.
How we counted
For bigsur.ai, the survey covered 10,000 top Tranco sites, collected on 19 October 2026. Requests could run for 8 seconds, with a 262,144-byte file limit. Only available files we could read enter the percentages. Repeat readings are included, using scripts/robots_2026_08_06.py (robots.py at app commit 07104ff). See the full survey method.
Common questions
What does naming this crawler tell me?
A name identifies the crawler addressed by a group. The survey found 4 files with that name and no recorded whole-site ban, out of 50.
Are leading sites different?
Its name appears in 0.9% of readable leading files and 0.8% overall. Blocking affects 0.7% in the leading group and 0.8% in all ranks.
How does the nearby crawler compare?
The nearby ApifyBot entry reports 49 files that name it and 46 whole-site blocks, 0.7% of readable files. Here, 50 files mention the name and 52 block access, or 0.8%.