indexo.dev

firstmark.com

.com crawl

First seen 2026-04-13 · Last seen 2026-05-06 · ok HTTP/1.1 200 350 ms crawled 2026-05-06

US · 162.159.137.54 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
FirstMark
Description
FirstMark is an early-stage venture capital firm in New York City. We back and accelerate founders making their mark on the world.
Language
en-US
Canonical
https://firstmark.com/

Open Graph

url
https://firstmark.com/
title
FirstMark
locale
en_US
site name
FirstMark
description
FirstMark is an early-stage venture capital firm in New York City. We back and accelerate founders making their mark on the world.

Technology

CDN
Cloudflare
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • firstmark.imgix.net×25
  • www.googletagmanager.com×1

Registration

Registrar
GoDaddy.com, LLC
Created
1994-10-27
Expires
2026-10-26 159 days left
Updated
2023-01-05
Name servers
  • ns17.domaincontrol.com
  • ns18.domaincontrol.com

DNS records live

NS
  • ns17.domaincontrol.com
  • ns18.domaincontrol.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 14 TXT records
  • amazon-business-verification=645b0512e66304fa458e6100248114842b5059bb458dc1e9e0a166cb5fea7fc6
  • canva-site-verification=PtJbELE5LG44J_WQWdi8QQ
  • anthropic-domain-verification-f7my1c=9lTHbAfH8ArVHRmdqkLJ9UIRa
  • efrontcloud.com
  • knowbe4-site-verification=5f12203a1450b3079f78981b28d78c5c
  • apple-domain-verification=xATK2IciicWxWD0o
  • ZOOM_verify_lwmJUhTOx9f1x9c3CmkaV3
  • MS=ms68064872
  • v=verifydomain MS=9812634
  • openai-domain-verification=dv-1iO0X2Aor2JIRYqAtULkKedw
  • google-site-verification=G-gOdG_ShRvouYy_Ts99nPpycYqD6Jn4Egr0buoCgD0
  • box-domain-verification=b53c027fc5dcfd432f2b9e19791068817fc088fa69335d632ba904e118e43d75
  • google-site-verification=bBOTQ29Fc4PRgUd56Jb_w29XYzPRGCCZx1ceONixNBI
  • slack-domain-verification=ipLQCC5YH6JgfNSSKr94FgDgDv1gRy9aKZeSljNO

Email authentication strong

SPF
v=spf1 include:_s01137372.autospf.email ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc-reports@firstmark.com
policy: quarantine
DKIM
Show 5 DKIM selectors
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAg8/1yfUJi3WQG9R9k6WeIF3pB/6Rq3XduUW1ANa6AXNcuE5vNCBaDxiSS6z7iEZa7AnGgPbehl8sS9…
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxzWtP/OUOFrXZJr2LPjwNAprgJS70pXYd84ivvK0GbOdmpDV53KPVrg444Cyu50rWCgQgkVegvEp0/mrPL…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDEvWylZhsxZJpJ2sN9G/e3V6J5zXox6lkLpvoqILh1k9w8JP7BUe06FTQ1q0RIr8+ioPQ3//F9+cED+cl8yYPq2t…
selectors probed

Certificate (current)

WE1
from 2026-03-29 to 2026-06-27
Expires in 39 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://firstmark.com/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (1)

Linked from (1)