Perplexity is using stealth, undeclared crawlers to evade website no-crawl directives
A post on blog.cloudflare.com is cited by 28 distinct blogs to date (corpus.blog, measured 11 October 2026).
A record is what was published and who pointed at it. The text of the post is not shown here: read it at the source, or at its Wayback capture.
28blogs citing
| Period | Blogs | Links |
|---|---|---|
| All time | 28 | 29 |
| Last 90 days | 3 | 3 |
| Last 30 days | 1 | 1 |
| Last 7 days | 0 | 0 |
| First cited | 24 Jun 2024 |
|---|---|
| Latest citation | 2 Oct 2026 |
| Words blogs link it with | 5 |
| Linked with its own title | 2 of 28 blogs |
| External links | 20 |
| Length | 1,255 |
0 this week (still settling) · peak 6
Show as table
| Week of | Value |
|---|---|
| 24 Jun 2024 | 1 |
| 1 Jul 2024 | 0 |
| 8 Jul 2024 | 0 |
| 15 Jul 2024 | 0 |
| 22 Jul 2024 | 0 |
| 29 Jul 2024 | 0 |
| 5 Aug 2024 | 0 |
| 12 Aug 2024 | 0 |
| 19 Aug 2024 | 0 |
| 26 Aug 2024 | 0 |
| 2 Sept 2024 | 0 |
| 9 Sept 2024 | 0 |
| 16 Sept 2024 | 0 |
| 23 Sept 2024 | 0 |
| 30 Sept 2024 | 0 |
| 7 Oct 2024 | 0 |
| 14 Oct 2024 | 0 |
| 21 Oct 2024 | 0 |
| 28 Oct 2024 | 0 |
| 4 Nov 2024 | 0 |
| 11 Nov 2024 | 0 |
| 18 Nov 2024 | 0 |
| 25 Nov 2024 | 0 |
| 2 Dec 2024 | 0 |
| 9 Dec 2024 | 0 |
| 16 Dec 2024 | 0 |
| 23 Dec 2024 | 0 |
| 30 Dec 2024 | 0 |
| 6 Jan 2025 | 0 |
| 13 Jan 2025 | 0 |
| 20 Jan 2025 | 0 |
| 27 Jan 2025 | 0 |
| 3 Feb 2025 | 0 |
| 10 Feb 2025 | 0 |
| 17 Feb 2025 | 0 |
| 24 Feb 2025 | 0 |
| 3 Mar 2025 | 0 |
| 10 Mar 2025 | 0 |
| 17 Mar 2025 | 1 |
| 24 Mar 2025 | 0 |
| 31 Mar 2025 | 0 |
| 7 Apr 2025 | 0 |
| 14 Apr 2025 | 0 |
| 21 Apr 2025 | 0 |
| 28 Apr 2025 | 0 |
| 5 May 2025 | 0 |
| 12 May 2025 | 0 |
| 19 May 2025 | 0 |
| 26 May 2025 | 0 |
| 2 Jun 2025 | 0 |
| 9 Jun 2025 | 0 |
| 16 Jun 2025 | 0 |
| 23 Jun 2025 | 0 |
| 30 Jun 2025 | 0 |
| 7 Jul 2025 | 0 |
| 14 Jul 2025 | 0 |
| 21 Jul 2025 | 0 |
| 28 Jul 2025 | 0 |
| 4 Aug 2025 | 6 |
| 11 Aug 2025 | 5 |
| 18 Aug 2025 | 0 |
| 25 Aug 2025 | 2 |
| 1 Sept 2025 | 1 |
| 8 Sept 2025 | 0 |
| 15 Sept 2025 | 1 |
| 22 Sept 2025 | 0 |
| 29 Sept 2025 | 0 |
| 6 Oct 2025 | 0 |
| 13 Oct 2025 | 1 |
| 20 Oct 2025 | 0 |
| 27 Oct 2025 | 0 |
| 3 Nov 2025 | 0 |
| 10 Nov 2025 | 0 |
| 17 Nov 2025 | 0 |
| 24 Nov 2025 | 0 |
| 1 Dec 2025 | 0 |
| 8 Dec 2025 | 0 |
| 15 Dec 2025 | 0 |
| 22 Dec 2025 | 0 |
| 29 Dec 2025 | 0 |
| 5 Jan 2026 | 0 |
| 12 Jan 2026 | 1 |
| 19 Jan 2026 | 0 |
| 26 Jan 2026 | 1 |
| 2 Feb 2026 | 0 |
| 9 Feb 2026 | 0 |
| 16 Feb 2026 | 0 |
| 23 Feb 2026 | 0 |
| 2 Mar 2026 | 0 |
| 9 Mar 2026 | 1 |
| 16 Mar 2026 | 0 |
| 23 Mar 2026 | 0 |
| 30 Mar 2026 | 0 |
| 6 Apr 2026 | 0 |
| 13 Apr 2026 | 0 |
| 20 Apr 2026 | 0 |
| 27 Apr 2026 | 1 |
| 4 May 2026 | 0 |
| 11 May 2026 | 0 |
| 18 May 2026 | 0 |
| 25 May 2026 | 0 |
| 1 Jun 2026 | 0 |
| 8 Jun 2026 | 0 |
| 15 Jun 2026 | 0 |
| 22 Jun 2026 | 0 |
| 29 Jun 2026 | 0 |
| 6 Jul 2026 | 0 |
| 13 Jul 2026 | 0 |
| 20 Jul 2026 | 1 |
| 27 Jul 2026 | 0 |
| 3 Aug 2026 | 0 |
| 10 Aug 2026 | 0 |
| 17 Aug 2026 | 0 |
| 24 Aug 2026 | 1 |
| 31 Aug 2026 | 0 |
| 7 Sept 2026 | 0 |
| 14 Sept 2026 | 0 |
| 21 Sept 2026 | 0 |
| 28 Sept 2026 | 1 (still settling) |
| 5 Oct 2026 | 0 (still settling) |
Shape: evergreen. Half of its 25 citing blogs had cited it after 417 days; 92% first cited it more than a year on.
Each blog counts once, in the week of its first citation. 3 blogs have no dated post that cites this page: counted in the tally, not here. A blog added to the index recently can bring old first citations in at once.
Who cited it
Cited by 28 blogs across 2 subjects: technology 21, arts and culture 1, unclassified 6.
- Technology21
- Arts and culture1
- Unclassified6
Words blogs link it with
The words blogs link this page with, by how many different blogs use them.
- cloudflare4 blogs
- have been perplexity2 blogs
- perplexity is using stealth, undeclared crawlers to evade website no-crawl directives2 blogs
- a post1 blog
- ai uzņēmumu perplexity izgaismoja1 blog
Cited by 28 blogs in 29 posts
One row per blog, the most recently citing first. Each shows the blog's newest citing post; open a row for the others.
linked as “publishing evidence”
Read at bumbletap.com (opens in a new tab)linked as “published research”
Read at ossama.is (opens in a new tab)linked as “report”
Read at hey.mataroa.blog (opens in a new tab)linked as “Cloudflare”
Read at aleximas.substack.com (opens in a new tab)linked as “disguising”
Read at katedowninglaw.com (opens in a new tab)linked as “Cloudflare publicly documented blocking Perplexity's crawlers”
Read at andre.lackmann.net (opens in a new tab)linked as “Undeclared crawlers”
Read at dropinblog.com (opens in a new tab)linked as “have been Perplexity”
Read at thezvi.wordpress.com (opens in a new tab)1 other post
linked as “Perplexity is repeatedly modifying their user agent and changing IPs and ASNs to hide their crawling…”
Read at thezvi.wordpress.com (opens in a new tab)linked as “a post”
Read at mbsamuel.substack.com (opens in a new tab)linked as “this blog post”
Read at borncity.com (opens in a new tab)linked as “Perplexity is using stealth, undeclared crawlers to evade website no-crawl directives”
Read at labnotes.org (opens in a new tab)linked as “call me Perplexity because I can’t scrape right”
Read at blog.tjll.net (opens in a new tab)linked as “Cloudflare has identified”
Read at poststatus.com (opens in a new tab)linked as “Cloudflare has some bad news about AI scrapers behaving badly”
Read at systemsapproach.org (opens in a new tab)linked as “AI uzņēmumu Perplexity izgaismoja”
Read at ronaldsvilcins.com (opens in a new tab)linked as “Cloudflare’s post”
Read at jonathanbossenger.com (opens in a new tab)linked as “this post from CloudFlare”
Read at rknight.me (opens in a new tab)linked as “announcement this morning”
Read at benjamintseng.com (opens in a new tab)linked as “Perplexity is using stealth, undeclared crawlers to evade website no-crawl directives.”
Read at sysjolt.com (opens in a new tab)Links from this post
Elsewhere on blog.cloudflare.com (1)
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