YaK: share of top websites blocking it

On 26 October 2026, 5.2% of the readable top 10k websites fully blocked YaK in robots.txt (bounds 4.1% to 24.3% over all 8,220 websites, 1,659 of them unreadable); 3.9% blocked it partly and 1.2% named it.

Last verified 2026-10-26 21:13 UTC (daily run of 2026-10-26). Proof for that day.

Operator
Meltwater
What it is
According to the Meltwater Consumer Intelligence page 'By applying AI, data science, and market research expertise to a live feed of global data sources, we transform unstructured data into actionable insights allowing better decision-making'.
Description
Retrieves data used for Meltwater's AI enabled consumer intelligence suite
robots.txt token
User-agent: YaK
Listed since
2026-10-26 (in this ledger's registry)

Fully blocks

5.2%

341 sites; bounds 4.1% to 24.3%

Partly blocks

3.9%

257 sites

Name it explicitly

1.2%

80 sites; unreadable: 3,439

Over time

Share of panel sites blocking YaK4 lines, 2016-09-05 to 2026-10-26; values between 2.55 and 5.53 %; latest 5.20 %.2.313.184.044.915.77Sep 2016Mar 2019Sep 2021Apr 2024Oct 2026blocks, reconstructed (Common Crawl): 2016-09-05 UTC: 3.14 %blocks, reconstructed (Common Crawl): 2017-09-25 UTC: 3.51 %blocks, reconstructed (Common Crawl): 2018-09-24 UTC: 3.64 %blocks, reconstructed (Common Crawl): 2019-09-23 UTC: 2.86 %blocks, reconstructed (Common Crawl): 2020-09-28 UTC: 2.58 %blocks, reconstructed (Common Crawl): 2021-09-27 UTC: 2.67 %blocks, reconstructed (Common Crawl): 2022-10-03 UTC: 2.61 %blocks, reconstructed (Common Crawl): 2024-09-16 UTC: 2.55 %blocks, reconstructed (Common Crawl): 2026-09-21 UTC: 3.58 %partly blocks, reconstructed (Common Crawl): 2016-09-05 UTC: 5.04 %partly blocks, reconstructed (Common Crawl): 2017-09-25 UTC: 4.91 %partly blocks, reconstructed (Common Crawl): 2018-09-24 UTC: 4.82 %partly blocks, reconstructed (Common Crawl): 2019-09-23 UTC: 4.76 %partly blocks, reconstructed (Common Crawl): 2020-09-28 UTC: 4.82 %partly blocks, reconstructed (Common Crawl): 2021-09-27 UTC: 4.98 %partly blocks, reconstructed (Common Crawl): 2022-10-03 UTC: 4.91 %partly blocks, reconstructed (Common Crawl): 2024-09-16 UTC: 5.10 %partly blocks, reconstructed (Common Crawl): 2026-09-21 UTC: 5.53 %blocks, daily observation: 2026-10-26 UTC: 5.20 %partly blocks, daily observation: 2026-10-26 UTC: 3.92 %

"Partly blocks" counts every robots.txt whose rules for YaK disallow some paths, including generic rules for all crawlers (for example /search); it is not a measure of targeted AI policy. Shares are of the readable websites (W − U: 8,220 websites, 1,659 unreadable); the bounds assume none / all of the unreadable sites block. Solid: daily first-party observations (top 10k of the Tranco list W3ZV9, one fixed cohort). Dashed: reconstructed from Common Crawl (top 10k, sites readable in every crawl), a separate series.

Reconstructed values per crawl
CrawlDateBlocksSites read
CC-MAIN-2016-362016-09-053.1%3,216
CC-MAIN-2017-392017-09-253.5%3,216
CC-MAIN-2018-392018-09-243.6%3,216
CC-MAIN-2019-392019-09-232.9%3,216
CC-MAIN-2020-402020-09-282.6%3,216
CC-MAIN-2021-392021-09-272.7%3,216
CC-MAIN-2022-402022-10-032.6%3,216
CC-MAIN-2024-382024-09-162.5%3,216
CC-MAIN-2026-392026-09-213.6%3,216

Recent blockers

Sites that started fully blocking YaK since 2026-07-28, highest-ranked first.

DateSiteWhat changed
No changes recorded yet. The first daily run is the baseline; changes appear from the second day on.

Recent unblockers

DateSiteWhat changed
No changes recorded yet. The first daily run is the baseline; changes appear from the second day on.

Sites blocking YaK now

facebook.com · fbcdn.net · instagram.com · twitter.com (*) · googlevideo.com (*) · amazon.com · whatsapp.net · netflix.com (*) · x.com (*) · whatsapp.com · baidu.com (*) · amazonvideo.com · reddit.com (*) · skybridge.click (*) · registrar-servers.com (*) · flickr.com (*) · meraki.com (*) · t.co (*) · linktr.ee (*) · imdb.com (*) · reuters.com (*) · demdex.net (*) · weibo.com (*) · amazon.co.uk · naver.com (*) · trustpilot.com (*) · netflix.net (*) · nflxvideo.net (*) · issuu.com · wsj.com (*) · amazon.de · cookiedatabase.org (*) · intel.com · gcdn.co (*) · kwai.net (*) · amazon.co.jp · edgecdn.ru (*) · sohu.com (*) · threads.com · netcraze.io (*) · amazon.fr · amazon.ca · meta.com · sharethrough.com (*) · primevideo.com · amazon.in · hstgr.net (*) · lemonde.fr · imgsmail.ru (*) · fb.com · hihonorcloud.com (*) · amazon.es · amazon.it · quantserve.com (*) · creativecdn.com (*) · crwdcntrl.net (*) · amazon.co.za · vkontakte.ru (*) · disneyplus.com (*) · sentinelone.net (*)

(*) blocked through the * group, not by name. Full list in current.csv.

Cite this

InfraRabbit AI Crawl Ledger, "Share of top websites blocking YaK", https://infrarabbit.com/crawlers/bot/YaK, retrieved 2026-10-26. CC BY 4.0.