51job.com

Domduck has read 51job.com on 7 days across 5 sources, since 2 August 2026. The domain was registered in 1999. Its robots.txt blocks none of the 8 AI crawlers Domduck tracks.

Last checked .

AI crawler policy51job.com
0/8AI crawlers
blocked
Blocked 0.0%Allowed by name 0.0%Not named 100.0%
Read from this domain’s own robots.txt, parsed to RFC 9309.
Popularity rank#6,974Tranco
Age27yAlibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
Certificate149dDigiCert, Inc.
AI crawlers0/8none blocked
Record7dsince 2026-08-02

What changed

7 days of readings

Nothing has changed since the first reading on 2 August 2026.

Popularity rank

72 days, lower is better
51job.com popularity rank#6,974 today
2026-08-026,974 – 6,9742026-10-12
The axis is flipped, so a rise on this chart is a rise in the list.

Position in the Tranco list, a research ranking of the million most popular domains averaged over thirty days so a single day’s traffic spike cannot move it.

AI crawler policy

No llms.txt
Blocked 0.0%Allowed by name 0.0%Not named 100.0%
GPTBotOpenAI
Not named

No ChatGPT browsing or training

OAI-SearchBotOpenAI
Not named

No ChatGPT search surface

ClaudeBotAnthropic
Not named

No Claude retrieval

PerplexityBotPerplexity
Not named

No Perplexity citation

Google-ExtendedGoogle
Not named

Out of Gemini and AI Overviews grounding, Search ranking unaffected

Applebot-ExtendedApple
Not named

Out of Apple Intelligence training

CCBotCommon Crawl
Not named

Out of most open training corpora

BytespiderByteDance
Not named

Out of TikTok and Doubao

Read from 51job.com/robots.txt. “Not named” means the file says nothing about that agent, which is not the same as allowing it: a catch-all rule added later blocks it without anyone deciding to.

What the domain itself says

read directly, not from a vendor
Certificate149d left
Issuer
DigiCert, Inc.
Valid
Yes
Expires
2027-02-25
Protocol
TLSv1.2
Names covered
2
DNS
A records
1
AAAA records
0
Mail exchangers
2
Nameservers
dns.51job.com, ns3.51job.com
DMARC policy
none published
Registration27 years old
Registered
1999-07-28
Registrar
Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
Registry status
active

How 51job.com compares to other .com domains

This domain51job.com
0of 8 crawlers blocked
Median .com5,228 domains
0of 8 crawlers blocked

Questions

Does 51job.com block GPTBot?
No. 51job.com's robots.txt does not disallow GPTBot, though it does not name the agent either.
Does 51job.com publish an llms.txt file?
No. Domduck found no llms.txt at 51job.com.
When was 51job.com registered?
28 July 1999, through Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn).
Who issues 51job.com's certificate?
DigiCert, Inc..

How this page is made

Every number on this page is a measurement Domduck took itself or read from a public source, on a stated date. Nothing here is written by a language model. Where a value has not changed, no sentence is generated about it.

What the collectors have read · Request removal

First reading . 5 sources, 7 days with at least one reading. The popularity rank comes from the Tranco list; the registration record from RDAP, which ICANN requires registries to publish. The certificate, the DNS records and the crawler policy are read by Domduck directly from 51job.com.