gpacalculator.io

.io crawl

First seen 2026-04-14 · Last seen 2026-05-07 · ok HTTP/1.1 200 389 ms crawled 2026-05-07

DE · 63.176.8.218 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
GPA Calculator – Calculate, Track and Save Your GPA
Description
Quickly calculate your high school, college and cumulative GPA with our easy-to-use GPA calculator. Track class grades and what you'll need on your final exam.
Language
en
Canonical
https://gpacalculator.io/

Open Graph

url
https://gpacalculator.io/
title
GPA Calculator – Calculate, Track and Save Your GPA
site name
GPA Calculator
description
Quickly calculate your high school, college and cumulative GPA with our easy-to-use GPA calculator. Track class grades and what you'll need on your final exam.

Technology

CDN
Netlify
Analytics
  • Google Tag Manager
Ads
  • Amazon Ads
Fonts
  • Google Fonts
Third-party hosts loaded (11)
  • a.pub.network×3
  • api.btloader.com×1
  • b.pub.network×1
  • btloader.com×1
  • c.amazon-adsystem.com×1
  • c.pub.network×1
  • cdn.confiant-integrations.net×1
  • d.pub.network×1
  • fonts.googleapis.com×1
  • s.amazon-adsystem.com×1
  • www.googletagmanager.com×1

Contact

Email

DNS records live

NS
  • dns1.p08.nsone.net
  • dns2.p08.nsone.net
  • dns3.p08.nsone.net
  • dns4.p08.nsone.net
MX
  • 1 smtp.google.com
TXT
  • google-site-verification=ZyoGSDyPG5XGoHzFmTpY_uyhCE-2MzoqAG76ZfrnaBw

Email authentication weak

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

Certificate (current)

E8
from 2026-04-18 to 2026-07-17
Expires in 59 days

HTTP security headers

Header hygiene 50/100 Checked live page: https://gpacalculator.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=31536000

Links to (4)

Linked from (2)