astro.com: what it tells AI crawlers
On 27 October 2026, astro.com's robots.txt fully blocked PerplexityBot and CCBot.
Last verified 2026-10-28 03:59 UTC (daily run of 2026-10-27). Proof for that day.
- Panel
- top 10k (Tranco)
- robots.txt
- ok (HTTP 200) · https://www.astro.com/robots.txt
unchanged since 2026-10-27 · sha256385484fcdf84e29d…· view as recorded - The * group
- allows applies to every agent without its own group
Per AI bot, 2026-10-27
| User agent | Verdict | How |
|---|---|---|
| GPTBot | allows | through the * group |
| OAI-SearchBot | allows | through the * group |
| ChatGPT-User | allows | through the * group |
| ClaudeBot | allows | through the * group |
| Claude-SearchBot | allows | through the * group |
| Claude-User | allows | through the * group |
| PerplexityBot | blocks | named in its own group |
| Perplexity-User | allows | through the * group |
| Googlebot | allows | through the * group |
| Google-Extended | allows | through the * group |
| Applebot-Extended | allows | through the * group |
| CCBot | blocks | named in its own group |
| Bytespider | blocks | named in its own group |
| Meta-ExternalAgent | blocks | named in its own group |
| Amazonbot | allows | through the * group |
| anthropic-ai | blocks | named in its own group |
| meta-webindexer | allows | named in its own group |
| PetalBot | blocks | named in its own group |
| ShapBot | blocks | named in its own group |
Other signals
| Publishes /llms.txt | no |
| Publishes /ai.txt | no |
| Publishes /.well-known/tdmrep.json | no |
| Reserves TDM rights (TDMRep file, header or meta) | no |
| Declares Content Signals (robots.txt or header) | no |
| Says ai-train=no in a Content Signal | no |
| Points to an RSL licence (robots.txt License line or Link header) | no |
| Answers with an x402 payment offer (lower bound: only the homepage is probed) | no |
| Answers HTTP 402 Payment Required (lower bound: only the homepage is probed) | no |
| Sends noai / noimageai directives | no |
| Refused our fetcher (403 / challenge) | no |
robots.txt as recorded sha256 e7c8d7abc7823860…
User-agent: ia_archiver Disallow: /samples User-agent: 008 Disallow: / User-agent: BoardReader Disallow: / User-agent: MJ12bot Disallow: / user-agent: arquivo-web-crawler disallow: / user-agent: Sogou web spider disallow: / user-agent: trendictionbot disallow: / user-agent: SemrushBot disallow: / user-agent: Riddler disallow: / user-agent: DotBot disallow: / user-agent: GrapeshotCrawle disallow: / user-agent: MauiBot disallow: / user-agent: CCBot disallow: / user-agent: BLEXBot disallow: / user-agent: AhrefsBot disallow: / User-agent: Mediapartners-Google disallow: /cgi/chart.cgi Crawl-delay: 5.0 User-agent: Slurp Crawl-delay: 3.0 user-agent: YandexBot Disallow: /astro-databank user-agent: bingbot Crawl-delay: 3.0 User-agent: Baiduspider User-agent: baiduspider User-agent: Baiduspider+ Crawl-delay: 5.0 Disallow: /swisseph user-agent: FreeFind disallow: /*.pdf$ disallow: /cgi/chart.cgi user-agent: OpenindexSpider disallow: /*.pdf$ disallow: /cgi/chart.cgi Disallow: /astro-databank/Category: user-agent: Googlebot Allow: /*.pdf$ Crawl-delay: 2.0 User-agent: * Allow: / Disallow: /apache Disallow: /d Disallow: /design Disallow: /ew97 Disallow: /ftp/swisseph/ephe/ast Disallow: /ftp/swisseph/ephe/jplfiles Disallow: /ftp/swisseph/ephe/longfiles Disallow: /h/gb Disallow: /hfot Disallow: /htm Disallow: /katalog Disallow: /license Disallow: /pair Disallow: /sgif Disallow: /sstat Disallow: /stats Disallow: /swisseph/*/ae16_ Disallow: /swisseph/*/d5 Disallow: /swisseph/ae/m0 Disallow: /swisseph/ae/0 Disallow: /swisseph/ae/1[0-7] Disallow: /swisseph/ae/21 Disallow: /swisseph/aeh Disallow: /tmpd Disallow: /webp Disallow: /hhag Disallow: /hhae Disallow: /cgi/forum.cgi Disallow: /yabbfiles Disallow: /cgi/sub.cgi Disallow: /cgi/bugrep.cgi Disallow: /cgi/ovi.cgi Disallow: /cgi/ade.cgi Disallow: /astrowiki/de/Benutzer Disallow: /astrowiki/de/Diskussion Disallow: /astrowiki/en/User Disallow: /astrowiki/en/Talk Disallow: /astro-databank/Private: Disallow: /wiki/*/index.php disallow: /*.pdf$ Sitemap: http://www.astro.com/sitemap_index.xml
robots.txt versions
| From | Through | State | Version | |
|---|---|---|---|---|
| 2026-10-27 | 2026-10-27 | ok 200 | 385484fcdf84 | diff with previous |
| 2026-10-26 | 2026-10-26 | ok 200 | a29cdc352fba |
Timeline of changes
| Date | What changed |
|---|---|
| 2026-10-27 | robots.txt changed |
| 2026-10-27 | now blocks PerplexityBot (was allow) |
| 2026-10-27 | now blocks ShapBot (was allow) |
Reconstructed history (Common Crawl)
From Common Crawl's robots.txt captures: what CCBot was served, one crawl per quarter. A separate series from the daily observations above; a 403 here means Common Crawl was refused, not this ledger.
| Crawl | Host | State | GPTBot | OAI-SearchBot | ChatGPT-User | ClaudeBot | Claude-SearchBot | Claude-User | PerplexityBot |
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-21 CC-MAIN-2026-39 | www.astro.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2025-09-15 CC-MAIN-2025-38 | www.astro.com | ok view | allows | allows | unknown | allows | allows | unknown | allows |
| 2024-09-16 CC-MAIN-2024-38 | www.astro.com | ok view | blocks | allows | unknown | allows | allows | unknown | allows |
| 2023-10-02 CC-MAIN-2023-40 | www.astro.com | ok view | blocks | partial | unknown | partial | partial | unknown | partial |
| 2022-10-03 CC-MAIN-2022-40 | www.astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
| 2021-09-27 CC-MAIN-2021-39 | www.astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
| 2020-09-28 CC-MAIN-2020-40 | www.astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
| 2019-09-23 CC-MAIN-2019-39 | www.astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
| 2018-09-24 CC-MAIN-2018-39 | astro.com | ok view | blocks | blocks | unknown | blocks | blocks | unknown | blocks |
| 2018-04-23 CC-MAIN-2018-17 | www.astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
| 2018-01-29 CC-MAIN-2018-05 | astro.com | ok view | blocks | blocks | unknown | blocks | blocks | unknown | blocks |
| 2017-10-23 CC-MAIN-2017-43 | astro.com | ok view | blocks | blocks | unknown | blocks | blocks | unknown | blocks |
| 2017-09-25 CC-MAIN-2017-39 | www.astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
| 2017-07-24 CC-MAIN-2017-30 | www.astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
| 2017-04-24 CC-MAIN-2017-17 | astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
| 2017-01-23 CC-MAIN-2017-04 | astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
| 2016-10-03 CC-MAIN-2016-40 | astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
| 2016-09-05 CC-MAIN-2016-36 | astro.com | ok view | partial | partial | unknown | partial | partial | unknown | partial |
Evidence
Every daily observation of astro.com is a leaf in that day's Merkle tree. Proof of the robots.txt line for 2026-10-27: audit path (JSON), day root and OpenTimestamps proof (complete (bitcoin block 973493)).
API: https://infrarabbit.com/crawlers/api/v1/policy/astro.com