collaborativeclassroom.org

.org crawl

First seen 2026-05-13 · Last seen 2026-05-18 · ok HTTP/1.1 200 2614 ms crawled 2026-05-18

US · 162.159.135.42 · AS13335 Cloudflare, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title

Home - Collaborative Classroom

Description

With evidence-based literacy solutions for early childhood through K–12, Collaborative Classroom is your partner for powerful teaching and learning.

Language

en-us

Generator

Give v4.14.6

Canonical

https://www.collaborativeclassroom.org/

Feeds

Open Graph

url: https://www.collaborativeclassroom.org/
title: Home
locale: en_US
site name: Collaborative Classroom
description: Ensuring that all students become readers, writers, and thinkers who learn from, care for, and respect one another.

Technology

CDN: Cloudflare

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (6)

fonts.googleapis.com×4
js.stripe.com×2
ccsalesprod.javelingateway.com×1
fonts.gstatic.com×1
js.hs-scripts.com×1
www.googletagmanager.com×1

Social

Contact

Phone

Registration

Registrar

Amazon Registrar, Inc.

Created

2013-08-09

Expires

2026-08-09 81 days left

Updated

2026-05-05

Name servers

ns-1071.awsdns-05.org
ns-1976.awsdns-55.co.uk
ns-40.awsdns-05.com
ns-910.awsdns-49.net

DNS records live

NS

ns-1071.awsdns-05.org
ns-1976.awsdns-55.co.uk
ns-40.awsdns-05.com
ns-910.awsdns-49.net

MX

1 aspmx.l.google.com
10 aspmx2.googlemail.com
10 aspmx3.googlemail.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

TXT

Show 11 TXT records

canva-site-verification=2meVDRhqJ-AtmxU7qd54hQ
google-site-verification=jZBPrjsGoOqg7_HaWMecwNqbzlTrRdGSQiRjCo2LG0s
atlassian-domain-verification=ijlEKLGPMjpF8zr9fhcMYeTRgJJsaEns6TTekYTZLEYix1SuF6XfK/tmV9d6PKBs
apple-domain-verification=GX4BEeDj9AWL4tlf
MS=DEA21466BAEF949392117C68305642554A547CC8
hubspot-domain-verification=NGQ5ZGJlZmItNDcyMi00NTFhLWE0YzQtNWY4NTU1Njk2ZWM2
smartsheet-site-validation=bQEGBYci85qM_hA6qPJ_xMlfePcd3w_O
google-site-verification=3kY-vD6_r_4Lm3FuBKMNuhuxzGB5cDNJv3oYZqG2iMk
bw=VLhcuClhgU6wpVgNVaBelFrI66wEbMFR7SDcsYcFD8it
atlassian-domain-verification=l2MvKiRBx9ESUISrwtBR4hdZvyKmlDF3BHq4IpYXTaV1AoD95iJsMuahxWc5hA1E
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCe78b2clBVlY6nwjkHoMhSGqRLs1Tr4mFw/SsAmk/cCTvpZdowPjXey3UmnhkA5Vfe1xX7CtLpIzJM0dReufSOWhVDct8ZL1LGSpBtKm0Nc1RMQ8ofFOzftIfUG7Mg3uZTzTXbB3CpmffhzvnU5PoJSOp6hl/2Nm2vwEbREfygdwIDAQAB

Email authentication partial

SPF

v=spf1 include:_spf.google.com include:servers.mcsv.net include:234358.spf02.hubspotemail.net  include:mail.zendesk.com include:icpbounce.com ip4:67.227.157.221 ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:dmarcreport@collaborativeclassroom.org

policy: none (monitoring only)

DKIM

Show 5 DKIM selectors

google: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCe78b2clBVlY6nwjkHoMhSGqRLs1Tr4mFw/SsAmk/cCTvpZdowPjXey3UmnhkA5Vfe1xX7CtLpIzJM0dReuf…
k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtH0Gz46FxuMqtpieLarWRFU9cHLb2y+P/WmoO+111259FUnQHiCz5T8umdUX80hEF6RwBuALKpzLIjZqCF…
s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8P7dQJ287zsR58RPmWLnYdNqtKekg4OTBMl/QivRlkww8JNcaHwmARb/a1tJQLLOeuXUHb2u67ec3RIk/OSviQ+…
smtpapi: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPtW5iwpXVPiH5FzJ7Nrl8USzuY9zqqzjE0D1r04xDN6qwziDnmgcFNNfMewVKN2D1O+2J9N14hRprzByFwfQW76…

selectors probed

Certificate (current)

WE1

from 2026-03-28 to 2026-06-26

Expires in 37 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.collaborativeclassroom.org/

present

x-content-type-options

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing Referrer Policy
missing Permissions Policy

Header values

x-content-type-options: nosniff

Links to (6)

Linked from (1)

edleadersnetwork.org×1