zhaojunkeji.com

HTML metadata

Technology

CDN

Cloudflare

Third-party hosts loaded (3)

• cdn.jsdelivr.net×2
• cdnjs.cloudflare.com×1
• sdk.51.la×1

Social

• linkedin
• twitter
• github

Contact

Phone

• 20240508123
• 11010802034789
• +86-10-8765 4321
• +86-10-8765 4322

Address

海淀区中关村南大街12号科技大厦B座8层, 100081, 北京市, 北京, CN

Registration

Registrar

Gname.com Pte. Ltd.

Created

2014-09-11

Expires

2026-09-11 96 days left

Updated

2026-02-01

Name servers

• alexia.ns.cloudflare.com
• gabriel.ns.cloudflare.com

DNS records live

NS

• alexia.ns.cloudflare.com
• gabriel.ns.cloudflare.com

Email authentication no MX

SPF

not published

DMARC

not published

DKIM

no key found at common selectors

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.zhaojunkeji.com

present

• strict-transport-security

findings

• missing Content Security Policy
• missing frame protection
• missing content type protection
• missing Referrer Policy
• missing Permissions Policy

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