indexo.dev

523et.com

.com crawl

First seen 2026-04-15 · Last seen 2026-05-15 · ok HTTP/1.1 200 2742 ms crawled 2026-05-15

CN · 39.106.218.97 · AS37963 Hangzhou Alibaba Advertising Co.,Ltd.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
易学国际小语种教育-日韩德法西意俄语兴趣,考级,留学,高考,考研培训班
Description
西安日语,韩语,俄语,法语,德语,意大利语,西班牙语培训哪家好?易学国际小语种教育是西北地区专业小语种培训中心,十几年教学经验的海外教育学背景师资团队,目前共开设日语、韩语、法语、俄语、德语、西班牙语、意大利语等小语种的兴趣,留学,考级,一对一定制,高考,考研培训等多个培训课程,趣味教学,中外教结合以满足不同学员的各种学习需求,家长和学员的认可度高,评价好.
Language
zh

Technology

Server
nginx
CMS
Gatsby

Contact

Phone

Registration

Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Created
2017-10-25
Expires
2026-10-25 158 days left
Updated
2025-10-27
Name servers
  • dns13.hichina.com
  • dns14.hichina.com

DNS records live

NS
  • dns13.hichina.com
  • dns14.hichina.com
MX
  • 10 mxbiz1.qq.com
  • 10 mxbiz2.qq.com

Email authentication weak

SPF
v=spf1 include:spf.mail.qq.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-03-31 to 2026-06-29
Expires in 40 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://523et.com/

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 (7)

Linked from (1)