indexo.dev

liaoxuefeng.com

.com crawl

First seen 2026-04-12 · Last seen 2026-05-19 · ok HTTP/1.1 200 318 ms crawled 2026-05-20

US · 185.199.111.153 · AS54113 Fastly, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
首页 - 廖雪峰的官方网站
Description
廖雪峰的官方网站 (liaoxuefeng.com) 研究互联网产品和技术，提供原创中文精品教程
Language
zh-CN

Technology

CDN
Fastly
Server
GitHub.com
CMS
Gatsby

Third-party hosts loaded (1)

  • hm.baidu.com×1

Social

Registration

Registrar
Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
Created
2009-02-05
Expires
2027-02-05 260 days left
Updated
2024-08-13
Name servers
  • f1g1ns1.dnspod.net
  • f1g1ns2.dnspod.net

DNS records live

NS
  • f1g1ns1.dnspod.net
  • f1g1ns2.dnspod.net
CNAME
  • michaelliao.github.io

Email authentication no MX

SPF
not published
DMARC
not published
DKIM
Show 12 DKIM selectors
  • default: v=DKIM1; p=
  • google: v=DKIM1; p=
  • selector1: v=DKIM1; p=
  • selector2: v=DKIM1; p=
  • k1: v=DKIM1; p=
  • k2: v=DKIM1; p=
  • mail: v=DKIM1; p=
  • dkim: v=DKIM1; p=
  • s1: v=DKIM1; p=
  • s2: v=DKIM1; p=
  • mxvault: v=DKIM1; p=
  • smtpapi: v=DKIM1; p=
selectors probed

Certificate (current)

R13
from 2026-04-06 to 2026-07-05
Expires in 45 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://liaoxuefeng.com/

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

Links to (2)

Linked from (3)