indexo.dev

primer.com

.com crawl

First seen 2026-04-16 · Last seen 2026-05-17 · ok HTTP/1.1 200 3852 ms crawled 2026-05-11

US · 172.67.71.241 · AS13335 Cloudflare, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
Primer | School for What’s Ahead
Description
Primer is a teacher-led K–8 school model built on mastery in reading, writing, and math, with safe, caring classrooms.
Language
en
Canonical
https://primer.com

Open Graph

title
Primer | School for What’s Ahead
description
A timeless, teacher-led education built on mastery in reading, writing, and math.

Technology

CDN
Cloudflare
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (6)

  • cdn.prod.website-files.com×52
  • ajax.googleapis.com×1
  • d3e54v103j8qbb.cloudfront.net×1
  • fonts.googleapis.com×1
  • fonts.gstatic.com×1
  • www.googletagmanager.com×1

Social

Contact

Phone

Registration

Registrar
Cloudflare, Inc.
Created
1996-03-05
Expires
2027-03-06 290 days left
Updated
2026-02-04
Name servers
  • nitin.ns.cloudflare.com
  • robin.ns.cloudflare.com

DNS records live

NS
  • nitin.ns.cloudflare.com
  • robin.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 10 TXT records
  • MS=ms59750208
  • facebook-domain-verification=yuzs3mq51mfae1dlw48x8y5okin8ud
  • google-gws-recovery-domain-verification=42660393
  • google-site-verification=0HqOzlsX0FqSOMn3VeAT-XRwvukeXITz2NNLYGb0XK8
  • google-site-verification=BJZbey8qWIXWJbBL68NOcE4MQM35hmciqCqAcu6hnag
  • google-site-verification=NOiwz6kE6hLXI6QassLVUOTLzE0np3ltXiRb4AQSdu0
  • google-site-verification=_zgSpK_oz6y3lho-vyawDKX_jralEto2bsGcsM0_WP8
  • hubspot-developer-verification=MTMyYzNiNWItNWFlNS00ODllLTg3NTMtZTNkN2ZjNDM3ZDQ2
  • stripe-verification=7bfcb45318b2fb9caa6f6193d2b334ad9f5c86d3ebb0f4664feacaeb2c793896
  • zoom-18027209

Email authentication strong

SPF
v=spf1 include:_spf.google.com include:sendgrid.net include:_spf.salesforce.com ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; adkim=s; aspf=s; pct=100; rua=mailto:9c574354751b4b5499bc796f8d88b199@dmarc-reports.cloudflare.net
policy: quarantine
DKIM
Show 4 DKIM selectors
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5VPm2E9HQQcyU3Uu9NTnemSEOqkbfp6UCAe6/Hg1iNUMjHR/oCRzbmaRrf1Ba5KcJgPa2Hxp36oz4L…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA+Jp/zKZCJXEj3Gxm7RDMsNRMvSDLaT2oVj1X79F4L2ajYrmNRFpCbLHS36mtOsH8j89FhMK1ZFOO+wZt+M…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDfDtBSH44BqSiMwA133iJU5vj0lVeKMd3Wj9zjs6PgDc8RS7HXjIBx6rq5tybzycgwpMP+44BMosFZIJTpNBnzSf…
selectors probed

Certificate (current)

WE1
from 2026-04-29 to 2026-07-29
Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://primer.com/

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 (3)

Linked from (2)