calpine.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-16 · ok HTTP/1.1 200 1503 ms crawled 2026-05-16

US · 23.185.0.1 · AS54113 Fastly, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title

America’s Premier Competitive Power Company - Calpine

Description

Calpine Corporation is America’s premier privately held competitive power company committed to fulfilling America’s power needs today – and tomorrow.

Language

en-US

Generator

WordPress 6.8.2

Canonical

https://www.calpine.com/

Feeds

Calpine » Feed RSS
Calpine » Comments Feed RSS

Open Graph

url: https://www.calpine.com/
title: America’s Premier Competitive Power Company
locale: en_US
site name: Calpine
description: Calpine Corporation is America’s premier privately held competitive power company committed to fulfilling America’s power needs today – and tomorrow.

Technology

Server: nginx
CMS: WordPress

Analytics

Google Tag Manager

Third-party hosts loaded (3)

api.tiles.mapbox.com×2
kit.fontawesome.com×2
www.googletagmanager.com×1

Social

Registration

Registrar

Network Solutions, LLC

Created

1995-08-29

Expires

2029-08-28 1197 days left

Updated

2024-06-29

Name servers

ns1-07.azure-dns.com
ns2-07.azure-dns.net
ns3-07.azure-dns.org
ns4-07.azure-dns.info

DNS records live

NS

ns1-07.azure-dns.com
ns2-07.azure-dns.net
ns3-07.azure-dns.org
ns4-07.azure-dns.info

MX

10 calpine-com.mail.protection.outlook.com

TXT

Show 14 TXT records

i5dr6o5fj0u8vv01ns6oouee7q
adobe-idp-site-verification=7e666ed390b9e53f8e2467cea8b3f2fe5f1a3ef1200798a7b4f27d2433916691
atlassian-sending-domain-verification=cdb2b51a-48b0-4305-80ad-f23f694c1f00
intersight=75536b365564b3ca2736d8d7a10a254a7872d41deed3759d939bf29bce46816e
mandrill_verify.M8qJw_1DdGE6VwXqbgwt1Q
ZOOM_verify_fAjEKkdafemT7LBk5WMBrj
MS=ms61319655
kwjvPJeLbnLemDuCZROsDYxhuFHIEvsXAOrGaxu/eHxAkSR5eughwo2pMHZwPKgDCNaWFc1evP2H55CA3c+0cA==
All inquiries should be directed to DNSRequest@calpine.com
ciscocidomainverification=4169efb974ffedcb30c4042367e58fa5255c9438e8eff30e6a240ba16c3af629
eirjai8jb0ln04eprb74qfslv
docusign=4c9148c3-0cea-4c68-84cf-683cd68e730f
atlassian-domain-verification=JYl84X964STtLQTqvI9hDdhF3gPuJfa+fN1JwV/a6YG0giyU7aGVcyVv/ZiJzCkw
apple-domain-verification=2C9Ws3qvLBtHgUkz

Email authentication partial

SPF

v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email,mailto:dmarcreports@calpine.com; ruf=mailto:dmarcreports@calpine.com

policy: none (monitoring only)

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoJwb2D9kpqHpwIkabCnCxbEwThIyCzNnXJJi79x8SIenN3KBSRckYsgdHi2ZoZG8SJzQ3mfB42rRiW…

selectors probed

Certificate (current)

R13

from 2026-04-08 to 2026-07-07

Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present

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

findings

short HSTS max-age
missing Content Security Policy
missing Permissions Policy

Header values

referrer-policy: no-referrer-when-downgrade
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
strict-transport-security: max-age=300

Links to (8)

Linked from (2)

geysers.com×2
accessindustries.com×1