teachingmatters.org

.org crawl

First seen 2026-04-19 · Last seen 2026-05-13 · ok HTTP/1.1 200 1773 ms crawled 2026-05-13

US · 23.185.0.4 · AS54113 Fastly, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Home - Teaching Matters
Language: en-US
Canonical: https://teachingmatters.org/

Open Graph

url: https://teachingmatters.org/
title: Home - Teaching Matters
locale: en_US
site name: Teaching Matters
description: Welcoming Carolyne Quintana as Our New CEO After over 20 years of leadership, Lynette Guastaferro will retire. We are proud to announce Carolyne Quintana as the next Chief Executive Officer of Teaching Matters. Opportunity gaps in the American education system harm millions of students, predominantly in low-income, Black, and Latino communities. By collaborating with school … Continued

Technology

Server: nginx
CMS: WordPress

Third-party hosts loaded (1)

script.crazyegg.com×1

Social

Contact

Phone

(212) 870-3505

Registration

Registrar

Network Solutions, LLC

Created

2001-06-19

Expires

2034-06-19 2952 days left

Updated

2024-10-06

Name servers

ns81.worldnic.com
ns82.worldnic.com

DNS records live

NS

ns81.worldnic.com
ns82.worldnic.com

MX

10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
30 alt2.aspmx.l.google.com
40 aspmx2.googlemail.com
50 aspmx3.googlemail.com

TXT

Show 4 TXT records

slack-domain-verification=0dDKm0ZW9HCPQn1daYlZnEFVvhhYaqdz54Gum2Fp
MS=ms70655789
google-site-verification=xFeBfH_CHT8Iau_ikm47QVlofRnGKkQ46mqd7haoCfs
pardot985771=ae43796e147c09935ec2b408e72301c638b59b9438dee289d48d6b2d15caf281

Email authentication strong

SPF

v=spf1 include:_spf.google.com include:_spf.salesforce.com include:servers.mcsv.net include:aspmx.pardot.com ~all

softfail (~all)

DMARC

v=DMARC1; p=quarantine; pct=100;rua=mailto:noreply@teachingmatters.org;ruf=mailto:noreply@teachingmatters.org;ri=86400;aspf=r;adkim=r;fo=1

policy: quarantine

DKIM

Show 5 DKIM selectors

google: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC37G9xl0vPmy17JqsNGxP0stwOwanDpnq4mHKnmHJAl5C98zMxtPgKbt/7yy7pzp5BUERFqsTLNG5lrNZn8d…
k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxq+nO4puPew5adF38jFtXP+xL/vL14a9DVVPRlwDf6Vdayt2vGZmPHacWd4w2r22cvrZnKdNOgBB7OrzY3…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxKSB5dScBfFXJKqTV4quBR3QK8xPuqdbRWg6joyTXkfqcahO7OHEnQ1YQx9WS+dUIupdtIvvPQE8cATeTV…
smtpapi: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPtW5iwpXVPiH5FzJ7Nrl8USzuY9zqqzjE0D1r04xDN6qwziDnmgcFNNfMewVKN2D1O+2J9N14hRprzByFwfQW76…

selectors probed

Certificate (current)

R13

from 2026-05-09 to 2026-08-07

Expires in 79 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://teachingmatters.org/

present

strict-transport-security

findings

short HSTS max-age
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=300

Links to (5)

Linked from (1)

future-ed.org×2