alliantenergy.com

.com crawl

First seen 2026-04-15 · Last seen 2026-05-18 · ok HTTP/1.1 200 3096 ms crawled 2026-05-11

US · 172.66.0.233 · AS13335 Cloudflare, Inc.

Reputation 100/100

Classifying

HTML metadata

Title: Alliant Energy - Homepage
Description: We deliver the energy solutions and exceptional service our customers and communities count on – safely, cost-effectively, efficiently and responsibly.
Language: en
Canonical: https://www.alliantenergy.com/

Open Graph

url: /
title: Homepage

Technology

CDN: Cloudflare

Analytics

Google Tag Manager

Third-party hosts loaded (2)

cdn.builder.io×2
www.googletagmanager.com×1

Social

Contact

Phone

800-255-4268

Registration

Registrar

NameSilo, LLC

Created

1998-11-09

Expires

2026-11-08 172 days left

Updated

2025-11-09

Name servers

ns3.alliant-energy.com
ns4.alliant-energy.com

DNS records live

NS

ns3.alliant-energy.com
ns4.alliant-energy.com

MX

10 mxa-001a4101.gslb.pphosted.com
10 mxb-001a4101.gslb.pphosted.com

TXT

atlassian-domain-verification=mFqAtVV4GS9do6g1D2iXF5cY3ebeOYS2zDH3jMJFERacTeWevmjq2YsrkJ6oIkis
google-site-verification=9gdQ6CBa4vyKDXkqbnw-rsWuLqM1Mqv2Zh_D_DGGwf0
dd2a8c501320eaceb80a4465005a33147abf47d73bd510359af8c9e06b35f04

Email authentication strong

SPF

v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all

softfail (~all)

DMARC

v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

policy: reject (enforced)

DKIM

s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqfRyrIoSONW2CI6skzAQ41o0/d9tjyHP3vQzvrBYM6US4x9an3wV+g+7Ud28dD4KyudP2hcYD5vdy6Fura…
s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDF++A73Ch1jt0DYcpQC4QQMuZ4zFXuVN1ida/MKoYX94g/ysOAjn4SmDABwqOstk3gqcmROa5oIF3uKLMILPjoSF…

selectors probed

Certificate (current)

from 2026-05-01 to 2026-07-30

Expires in 72 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.alliantenergy.com/

present

strict-transport-security
content-security-policy

findings

missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

content-security-policy: frame-ancestors 'self' https://energyassistance.alliantenergy.com
strict-transport-security: max-age=63072000