31jk.com

.com crawl

First seen 2026-05-04 · Last seen 2026-05-11 · ok HTTP/1.1 200 866 ms crawled 2026-05-11

US · 104.218.100.8 · AS26548 PureVoltage Hosting Inc.

Reputation 70/100 wrong cert weak security headers

sector health type homepage

HTML metadata

Title
清河县健序燿健康咨询有限公司
Description
清河县健序燿健康咨询有限公司
Language
zh-CN

Technology

Server
nginx

Third-party hosts loaded (1)

  • via.placeholder.com×3

Registration

Registrar
Metaregistrar BV
Created
2026-01-27
Expires
2027-01-27 252 days left
Updated
2026-03-29
Name servers
  • a8.share-dns.com
  • b8.share-dns.net

DNS records live

NS
  • a.share-dns.com
  • b.share-dns.net

Email authentication no MX

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current) wrong cert

R13
from 2026-03-20 to 2026-06-18
Expires in 29 days

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://31jk.com/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (50)

Linked from (50)