indexo.dev

vietsohoc.com

.com crawl

First seen 2026-05-13 · Last seen 2026-05-13 · ok HTTP/1.1 200 1949 ms crawled 2026-05-19

US · 172.67.208.147 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Việt Số Học
Language
vi
Generator
WordPress 6.9.4

Open Graph

title
Việt Số Học

Technology

CDN
Cloudflare
CMS
WordPress
Fonts
  • Google Fonts

Third-party hosts loaded (1)

  • fonts.googleapis.com×3

Contact

Phone

Registration

Registrar
Spaceship, Inc.
Created
2026-04-12
Expires
2027-04-12 327 days left
Updated
2026-04-13
Name servers
  • aragorn.ns.cloudflare.com
  • meiling.ns.cloudflare.com

DNS records live

NS
  • aragorn.ns.cloudflare.com
  • meiling.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)

E7
from 2026-04-13 to 2026-07-12
Expires in 53 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (1)