crashcourseinscience.com

.com crawl

First seen 2026-04-17 · Last seen 2026-05-14 · ok HTTP/1.1 200 3235 ms crawled 2026-05-12

ZA · 168.76.253.111 · AS137951 ASLINE LIMITED

Reputation 70/100 wrong cert weak security headers

Classifying

HTML metadata

Title: 历下区伍骨桥梁加固有限责任公司
Description: 历下区伍骨桥梁加固有限责任公司crashcourseinscience.com经营范围含:麻制包装用品、液压部件、粮食、饮料、门洞加固、电子电工、畜牧养殖业设备、办公文仪、美容健身、广告设计（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://crashcourseinscience.com/
title: 历下区伍骨桥梁加固有限责任公司
keywords: 历下区伍骨桥梁加固有限责任公司,crashcourseinscience.com,桥梁加固
site name: 历下区伍骨桥梁加固有限责任公司
description: 历下区伍骨桥梁加固有限责任公司crashcourseinscience.com经营范围含:麻制包装用品、液压部件、粮食、饮料、门洞加固、电子电工、畜牧养殖业设备、办公文仪、美容健身、广告设计（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

Metaregistrar BV

Created

2025-12-23

Expires

2026-12-23 218 days left

Updated

2026-02-22

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

—

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://crashcourseinscience.com/

findings

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