runsonwhat

51job's tech stack

What does 51job use?

51job (51job.com) uses at least 5 tools we can see from public records, including Alibaba Cloud for hosting, Tencent Exmail for email and documents and GlobalSign for security. 51job started using Tencent Exmail in Oct 2026. Last checked .

Industry
IT Services
Size
1,001–5,000 employees
Based in
Pudong, China
Founded
1998
LinkedIn
Company page
Re-check liveVisit 51job.com
Tools found
5
Categories
4
Layers
3 of 5
Changes seen
1

51job's stack, layer by layer

Of 5 tools, 2 came from website code, 1 from DNS verification records, 1 from custom domain and 1 from other records. Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.

Edge & Hosting

1 tool, where the bytes are served from

Hosting & Cloud

Application

1 tool, what the product is built with

Frontend

Company Ops

3 tools, what the team runs on day to day

Workspace

Security & Compliance

What changed at 51job

Recent starts and stops

  1. StartedTencent Exmail

Companies like 51job also use

Tools common among companies with a similar stack that we haven't found at 51job.

Companies with a stack like 51job's

Ranked by shared tools, with rare tools counting more.

More IT Services companies

Other IT Services companies we've checked.

51job tech stack FAQ

What tools does 51job use?

As of November 2026, runsonwhat has found 5 tools at 51job (51job.com) in public records. Edge & Hosting: Alibaba Cloud. Application: Vue.js. Company Ops: GlobalSign, Tencent Exmail and GeeTest. Last checked November 10, 2026.

What cloud does 51job run on?

51job uses Alibaba Cloud for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Alibaba Cloud through a subdomain that points at Alibaba Cloud. Alibaba Cloud is used by 6,885 companies runsonwhat tracks.

What email provider does 51job use?

51job uses Tencent Exmail for email and office software, according to runsonwhat (November 2026). runsonwhat found Tencent Exmail through email records that authorize Tencent Exmail. Tencent Exmail is used by 6,458 companies runsonwhat tracks.

Does 51job use GlobalSign?

Yes. runsonwhat found GlobalSign at 51job through a DNS verification record for GlobalSign. GlobalSign is a Security & Compliance tool used by 57,060 companies runsonwhat tracks.

Has 51job changed tools recently?

Yes. On runsonwhat's rechecks, 51job started using Tencent Exmail (latest on October 9, 2026). A change counts only between two checks of 51job.com done the same way.

Which companies have a tech stack similar to 51job's?

The companies with the stacks most like 51job's are 前锦网络信息技术（上海）有限公司, Ximalaya FM, Lotus Cars Official Website and Freedom24, according to runsonwhat (November 2026). Each shares 2 to 4 tools with 51job, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what 51job uses?

runsonwhat reads public records only. Of the 5 tools at 51job, 2 were found through code on 51job.com, 1 through DNS records, 1 through subdomains that point at the vendor and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and 51job.com about monthly.

We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.