indexo.dev

lingco.io

.io crawl

First seen 2026-04-19 · Last seen 2026-05-13 · ok HTTP/1.1 200 8136 ms crawled 2026-05-13

US · 216.150.16.193 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
Live Outside the Book | Lingco
Description
Delivering the next generation of language learning to schools.
Language
en

Open Graph

url
https://www.lingco.io
title
Lingco - Next Generation Language Learning for Schools
locale
en_US
site name
Lingco
description
Discover Lingco, the innovative platform revolutionizing language education with adaptive learning and comprehensive tools for educators and students.

Technology

CDN
Vercel
CMS
Next.js
Analytics
  • Google Tag Manager

Third-party hosts loaded (3)

  • ddwl4m2hdecbv.cloudfront.net×1
  • openpanel.dev×1
  • www.googletagmanager.com×1

DNS records live

NS
  • amit.ns.cloudflare.com
  • amy.ns.cloudflare.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
Show 8 TXT records
  • anthropic-domain-verification-qm3q4d=xrhMTNKEEsXG0WGmKUTweNECX
  • brevo-code:b4da2d9e73c354c876cd9d376b7e6962
  • openai-domain-verification=dv-rGjCJkrxqZHalDjmAjfmM6pn
  • slack-domain-verification=IQXwCARtZNHycnIg2p0MYIWaQ3pTrMfXIFojoZFT
  • 02-27-2024
  • DirectFedAuthUrl=https://accounts.google.com/o/saml2?idpid=C04gwrr64
  • MS=ms33536827
  • ZOOM_verify_jJMZxqbakaoJk7JPoRO2ZB

Email authentication strong

SPF
v=spf1 include:spf.mtasv.net include:_spf.google.com include:sendgrid.net include:servers.mcsv.net include:47487460.spf01.hubspotemail.net ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; sp=quarantine; pct=100; rua=mailto:cffbb215a21a4398954ea9e91fed4f4d@dmarc-reports.cloudflare.net,mailto:re+dqpz56iny6c@dmarc.postmarkapp.com; aspf=s;
policy: quarantine · sp=quarantine
DKIM
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvKIU4SdT4DYYIX7C17XH5l8t0omV3E2fqKbq/EHFj9QQPpeO2ZNsEXiMH/eVSSRcHuh4kza+1mQUCkRs6C…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDTFQ3pLXwgQvCYchioJNKuoEAx1Fuq0PEgD0lNmkc9Il2eQCAIwoUsV7+UlcTjnFOXadsSFQ3SerI5uuwhKI8UBD…
selectors probed

Certificate (current)

R12
from 2026-05-05 to 2026-08-03
Expires in 76 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.lingco.io/

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=63072000

Links to (1)

Linked from (1)