21exam.com

.com crawl

First seen 2026-04-17 · Last seen 2026-05-15 · ok HTTP/1.1 200 1514 ms crawled 2026-05-12

ZA · 168.76.252.183 · AS137951 ASLINE LIMITED

Reputation 70/100 wrong cert weak security headers

Classifying

HTML metadata

Title: 21exam-养生-职场
Description: 21exam-养生-职场21exam.com经营范围含:地板、焊接设备、纺织设备和器材、对讲机、饲料加工机械、化工原料、玻璃生产加工机械、洗护用品、烟草、毛巾（依法须经批准的项目,经相关部门批准后方可开展经营活动）。

Open Graph

url: http://21exam.com/
title: 21exam-养生-职场
keywords: 21exam-养生-职场,21exam.com,茶艺
site name: 21exam-养生-职场
description: 21exam-养生-职场21exam.com经营范围含:地板、焊接设备、纺织设备和器材、对讲机、饲料加工机械、化工原料、玻璃生产加工机械、洗护用品、烟草、毛巾（依法须经批准的项目,经相关部门批准后方可开展经营活动）。

Technology

Server: nginx

Third-party hosts loaded (1)

222.73.219.23×3

Registration

Registrar

Gname.com Pte. Ltd.

Created

2002-08-12

Expires

2026-08-12 84 days left

Updated

2025-08-12

Name servers

ns1.dnsip.com
ns2.dnsip.com

DNS records live

NS

ns1.dnsip.com
ns2.dnsip.com

Email authentication no MX

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

Certificate (current) wrong cert

—

from 2025-10-24 to 2035-10-22

Expires in 3443 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://21exam.com/

findings

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