itsoptimal.com

.com crawl

First seen 2026-04-23 · Last seen 2026-05-14 · ok HTTP/1.1 200 12236 ms crawled 2026-05-17

CA · 23.227.38.65 · AS13335 Cloudflare, Inc.

Reputation 94/100 dmarc monitor-only

ecommerce

HTML metadata

Title: Its Optimal | Optimal Tankless Water Heaters
Description: Optimal tankless water heaters are the most advanced tankless water heaters on the market. The Opti series provides endless hot water on demand, optional wifi smart technology, ultrasonic flow sensing, and a limited lifetime guarantee. It is the perfect solution for your home or business.
Language: en
Canonical: https://itsoptimal.com/

Technology

CDN: Cloudflare
CMS: Shopify

Analytics

Google Tag Manager

Social widgets

YouTube Embed

Third-party hosts loaded (8)

cdn.shopify.com×28
shop.app×2
a.klaviyo.com×1
cdn1.stamped.io×1
monorail-edge.shopifysvc.com×1
static.klaviyo.com×1
www.googletagmanager.com×1
www.youtube.com×1

Social

Contact

Phone

3866784625

Registration

Registrar

GoDaddy.com, LLC

Created

2020-03-05

Expires

2030-03-05 1386 days left

Updated

2026-03-14

Name servers

ns-1277.awsdns-31.org
ns-1918.awsdns-47.co.uk
ns-285.awsdns-35.com
ns-909.awsdns-49.net

DNS records live

NS

ns-1277.awsdns-31.org
ns-1918.awsdns-47.co.uk
ns-285.awsdns-35.com
ns-909.awsdns-49.net

MX

10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
30 alt2.aspmx.l.google.com
40 alt3.aspmx.l.google.com
50 alt4.aspmx.l.google.com

TXT

facebook-domain-verification=nnkyok9f0xq63i0hryu0z9w7r3ph1i
google-site-verification=-CuRDmoBbP0vi-qGdPCk0HEQdWz0J5J4sPmJvaXPJng
klaviyo-site-verification=SC2tbG

Email authentication partial

SPF

v=spf1 include:_spf.google.com ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:rua@itsoptimal.com, mailto:dmarc@itsoptimal.com; pct=100; adkim=s; aspf=s;

policy: none (monitoring only)

DKIM

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0JCQmVfIyqpLVWmDL1SlukcMkyc8PHnb5vR8pHF29SxwN5MNP9sthJgtGgd88HJfVStCKJ4JfRQeCM…

selectors probed

Certificate (current)

from 2026-04-18 to 2026-07-17

Expires in 59 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 85/100 Checked live page: https://itsoptimal.com/

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options

findings

short HSTS max-age
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: DENY
x-content-type-options: nosniff
content-security-policy: block-all-mixed-content; frame-ancestors 'none'; upgrade-insecure-requests;
strict-transport-security: max-age=7889238

Links to (9)

Linked from (1)

eeba.org×2