mostlyserious.io

.io crawl

First seen 2026-04-14 · Last seen 2026-05-15 · ok HTTP/1.1 200 1367 ms crawled 2026-05-07

US · 216.150.1.1 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Mostly Serious | We're Mostly Serious, A Full-Service Digital Agency
Description: Future-ready organizations start here. Custom websites, AI strategy & culture consulting—three teams, one purpose. Let's build something great together.
Language: en
Canonical: https://www.mostlyserious.io

Open Graph

url: https://www.mostlyserious.io
title: Mostly Serious | We're Mostly Serious, A Full-Service Digital Agency
site name: Mostly Serious
description: Future-ready organizations start here. Custom websites, AI strategy & culture consulting—three teams, one purpose. Let's build something great together.

Technology

CDN: Vercel
CMS: Next.js

Analytics

Google Tag Manager

Third-party hosts loaded (2)

msv8.imgix.net×5
www.googletagmanager.com×1

Social

Contact

Email

info@mostlyserious.io

Phone

4175016552

Address

4064 S Lone Pine, 65804, Springfield, MO, United States

DNS records live

NS

ns-1325.awsdns-37.org
ns-1737.awsdns-25.co.uk
ns-476.awsdns-59.com
ns-621.awsdns-13.net

MX

Show 7 MX records

10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
20 alt2.aspmx.l.google.com
30 aspmx2.googlemail.com
30 aspmx3.googlemail.com
30 aspmx4.googlemail.com
30 aspmx5.googlemail.com

Email authentication partial

SPF

v=spf1 mx a include:_spf.google.com ip4:147.160.167.0/26 ip4:23.21.109.197 ip4:23.21.109.212 ip4:159.183.113.185 ~all

softfail (~all)

DMARC

v=DMARC1; p=none; pct=100; rua=mailto:re+dbhvwv94fcg@dmarc.postmarkapp.com; sp=none; aspf=r;

policy: none (monitoring only) · sp=none

DKIM

s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoytOm6+IJVwkiYQXxvURWpYo+ztppnQBLEx8rUjV2BY9lV3EluTHnfqCWI6zazqFNdxvDWtfm+TS+oytYW…
s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDZ5uECK2LZDK7vH2lklUfBSh9UfJZsiyBnne/poATiccK+SUp3AI0ZSHTousfvuxFlB6eMG4YFaVStK/y5bhjM13…

selectors probed

Certificate (current)

R12

from 2026-03-09 to 2026-06-07

Expires in 19 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.mostlyserious.io/

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=63072000