indexo.dev

jeffcomo.gov

.gov user

First seen 2026-05-19 · Last seen 2026-05-19 · ok HTTP/1.1 200 2197 ms crawled 2026-06-03

US · 207.38.76.12 · AS36489 IP Pathways, LLC

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Jefferson County, MO | Official Website
Language
en

Technology

jQuery
3.7.1
Stack
ASP.NET

Third-party hosts loaded (1)

  • docaccess.com×1

Social

Contact

Phone

Registration

Registrar
get.gov
Created
2025-02-04
Expires
2027-01-06 209 days left
Updated
2026-01-11
Name servers
  • erin.ns.cloudflare.com
  • jason.ns.cloudflare.com

DNS records live

NS
  • erin.ns.cloudflare.com
  • jason.ns.cloudflare.com
MX
  • 10 jcmosmtp.in.tmes.trendmicro.com
  • 20 jeffcomo-gov.mail.protection.outlook.com
TXT
  • tmes=5fd4e3c98450908f7fefed6f1a681544
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:spf.tmes.trendmicro.com include:spf-us.tmes.trendmicro.com include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-05-25 to 2026-08-23
Expires in 74 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://jeffcomo.gov/

present
  • content-security-policy
  • x-content-type-options
findings
  • missing HSTS
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self' https://*.granicus.com https://platform.civicplus.com https://account.civicplus.com https://analytics.civicplus.com; img-src * data: blob:; worker-src * data: blob: 'unsafe-eval' 'unsafe-inline'; script-src * about: 'unsafe-inline' 'unsafe-eval'; style-src * 'unsafe-inline'; media-src * blob:; font-src * data:; default-src *

Links to (5)

Use this data via API

Everything on this page for jeffcomo.gov is available as JSON from the indexo.dev REST & MCP API.

curl "https://indexo.dev/api/v1/domains/jeffcomo.gov" \
  -H "X-API-Key: idx_..."

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