indexo.dev

021fl.net

.net crawl

First seen 2026-06-01 · Last seen 2026-06-02 · ok HTTP/1.1 200 817 ms crawled 2026-06-02

US · 104.21.72.44 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
留学之路
Language
zh-Hans

Technology

CDN
Cloudflare

Registration

Registrar
Cloudflare, Inc.
Created
2008-04-06
Expires
2027-04-06 304 days left
Updated
2025-11-30
Name servers
  • asa.ns.cloudflare.com
  • titan.ns.cloudflare.com

DNS records live

NS
  • asa.ns.cloudflare.com
  • titan.ns.cloudflare.com
Verified for
  • Google

Email authentication no MX

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

Certificate (current)

WE1
from 2026-05-19 to 2026-08-17
Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.021fl.net/

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

Links to (5)

Linked from (1)