indexo.dev

21jsr.com

.com crawl

First seen 2026-04-15 · Last seen 2026-05-07 · ok HTTP/1.1 200 1653 ms crawled 2026-05-10

US · 172.67.175.231 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

sector gambling type homepage

HTML metadata

Title
加拿大28-加拿大28pc|雪球预测结果查询|加拿大28预测_极致火热优质的免费预测
Description
Canada28刮奖【21jsr.Com】专业提供加拿大28-加拿大28pc、雪球预测结果查询、加拿大28预测、极致火热优质的免费预测,模式算法测试及开奖结果查询,做专业的幸运开奖官网数据统计站。
Language
zh-CN

Technology

CDN
Cloudflare
CMS
Gatsby

Third-party hosts loaded (1)

  • sdk.51.la×1

Registration

Registrar
Gname.com Pte. Ltd.
Created
2021-07-21
Expires
2026-07-21 61 days left
Updated
2025-11-24
Name servers
  • andy.ns.cloudflare.com
  • liv.ns.cloudflare.com

DNS records live

NS
  • andy.ns.cloudflare.com
  • liv.ns.cloudflare.com

Email authentication no MX

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

Certificate (current)

WE1
from 2026-03-22 to 2026-06-20
Expires in 31 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://21jsr.com/

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

Linked from (1)