indexo.dev

51521.net

.net crawl

First seen 2026-04-13 · Last seen 2026-05-02 · ok HTTP/1.1 200 1224 ms crawled 2026-05-07

CN · 8.148.184.198 · AS37963 Hangzhou Alibaba Advertising Co.,Ltd.

Reputation 100/100

Classifying

HTML metadata

Title
足球联赛高清视频直播_足球在线直播无插件免费观看_叭球体育直播网
Description
叭球体育直播网为您提供足球直播【英超,西甲,意甲,德甲,法甲,中超,欧冠,欧洲杯】NBA常规赛,NBA季后赛,NBA总决赛等,NBA视频直播,NBA直播免费,NBA直播高清,NBA直播在线观看,NBA直播免费高清在线观看,NBA无插件免费观看比赛,篮球足球直播应有尽有,NBA直播打造一站式看球网站！
Language
zh-CN
Canonical
https://51521.net/

Open Graph

tag
足球直播,足球联赛直播,足球直播视频,足球在线观看无插件
url
https://51521.net/
title
足球联赛高清视频直播_足球在线直播无插件免费观看_叭球体育直播网
site name
叭球体育直播网
description
叭球体育直播网为您提供足球直播【英超,西甲,意甲,德甲,法甲,中超,欧冠,欧洲杯】NBA常规赛,NBA季后赛,NBA总决赛等,NBA视频直播,NBA直播免费,NBA直播高清,NBA直播在线观看,NBA直播免费高清在线观看,NBA无插件免费观看比赛,篮球足球直播应有尽有,NBA直播打造一站式看球网站！

Technology

Server
nginx

Third-party hosts loaded (3)

  • www.wanhaoqiu.com×2
  • cdn.tailwindcss.com×1
  • sdk.51.la×1

Contact

Phone

Registration

Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Created
2004-11-27
Expires
2026-11-27 192 days left
Updated
2025-11-24
Name servers
  • dns19.hichina.com
  • dns20.hichina.com

DNS records live

NS
  • dns19.hichina.com
  • dns20.hichina.com

Email authentication no MX

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

Certificate (current)

Certum Domain Validation CA SHA2
from 2025-09-09 to 2026-10-09
Expires in 143 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://51521.net/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31536000

Links to (1)

Linked from (1)