indexo.dev

addcal.co

.co crawl

First seen 2026-04-14 · Last seen 2026-05-17 · ok HTTP/1.1 200 1500 ms crawled 2026-05-08

US · 188.114.97.3 · AS13335 Cloudflare, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Free Add to Calendar Links & Event Pages | AddCal
Description
Create add-to-calendar links, embeddable calendars, and event pages that work with Google Calendar, Outlook, and Apple Calendar. Free forever.
Language
en
Canonical
https://addcal.co

Open Graph

url
https://addcal.co
title
AddCal - Free Add to Calendar Links & Event Pages
locale
en_US
site name
AddCal
description
Create add-to-calendar links, embeddable calendars, and event pages. Works with every calendar app. Free forever.

Technology

CDN
Cloudflare
CMS
Gatsby
Analytics
  • Cloudflare Insights

Third-party hosts loaded (2)

  • js.sentry-cdn.com×1
  • static.cloudflareinsights.com×1

DNS records live

NS
  • noel.ns.cloudflare.com
  • robin.ns.cloudflare.com
MX
  • 33 route2.mx.cloudflare.net
  • 37 route1.mx.cloudflare.net
  • 60 route3.mx.cloudflare.net
TXT
Show 4 TXT records
  • zoom-domain-verification=ZOOM_verify_8b0b595308874c36ae79fe66b4513c47
  • MS=ms28326101
  • MS=ms77107513
  • google-site-verification=RAIBNU7-UX_nfX5OJ3vB-xwsuOU6aZsTmUp5Cqs0TTQ

Email authentication partial

SPF
v=spf1 include:_spf.mx.cloudflare.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-05-08 to 2026-08-06
Expires in 78 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://addcal.co/

present
  • content-security-policy
  • x-frame-options
  • x-content-type-options
findings
  • missing HSTS
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
DENY
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self';

Linked from (4)