hfsinclair.com

.com crawl

First seen 2026-04-17 · Last seen 2026-05-18 · error HTTP 403 crawled 2026-05-14 5 attempts

US · 162.159.129.11 · AS13335 Cloudflare, Inc.

Reputation 82/100 crawl error no dmarc policy

Classifying

via Internet Archive Data from 2023-12-01 — live crawl blocked by site

HTML metadata

Title: HF Sinclair Corporation | Home
Description: An independent petroleum refiner in the United States with operations throughout the mid-continent, southwestern and Rocky Mountain regions. Subsidiaries of HollyFrontier produce and market gasoline, diesel, jet fuel, asphalt, heavy products and specialty lubricant products. Additionally, HollyFrontier owns Petro-Canada Lubricants Inc. whose Mississauga, Ontario facility produces 15,600 barrels per day of base oils and other specialized lubricant products.
Language: en-CA

Technology

Analytics

Cloudflare Insights
Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (10)

s29.q4cdn.com×15
cdnjs.cloudflare.com×4
widgets.q4app.com×3
code.jquery.com×2
fonts.googleapis.com×2
www.hollyfrontier.com×2
q4implementation.s3.amazonaws.com×1
static.cloudflareinsights.com×1
www.bugherd.com×1
www.googletagmanager.com×1

Social

Registration

Registrar

GoDaddy Corporate Domains, LLC

Created

2021-06-23

Expires

2026-06-23 34 days left

Updated

2025-05-24

Name servers

ns03.gcd-dns.com
ns04.gcd-dns.com

DNS records live

NS

ns03.gcd-dns.com
ns04.gcd-dns.com

MX

10 us-smtp-inbound-1.mimecast.com
10 us-smtp-inbound-2.mimecast.com

TXT

Show 15 TXT records

box-domain-verification=75a40478c5d37874ddf243d07886454e9d09e829e52168e6df99b914b6d01fcc
docusign=3d573937-c191-45a3-a018-2cd867f45810
cisco-ci-domain-verification=15545c5137d684d2682b579a4b8b4dced50f580412c6d01aa964d65822faf397
sitecore-domain-verification=0d3d0b66e80f4e0885c051db841c359f
MS=ms61923973
knowbe4-site-verification=ac035c10822a613e78c544cb3b1d2a34
JovlpKAzFtIC32wl52OhRASahC/L2sIZJOra85ZqIPs1F4lltevIXHrf1JgMJLTfjOw5MZUMtHqh7XHVw12P+g==
6dz6dbrrmyr29f12t6cld12zn5k7cb22
atlassian-domain-verification=47KU47l9CWxRkh8URmIepw3dKQ5db1AGbNs7XlaUBY/bOmLbTfwxh3ch89/RLiW5
atlassian-sending-domain-verification=a80574f9-806c-4013-8b2a-77a00e2df3a3
apple-domain-verification=hMc8fdJ355mBoeDu
XnyC3Gpy15zeXiB7rxA4
lnwplzyh31z6grhfdrb4shpv6l0d66yb
autodesk-domain-verification=hkBsVKsA8jilnbRwEtXIO
autodesk-domain-verification=hkBsVKsA8jlnbRwEtXI0

Email authentication weak

SPF: v=spf1 a ip4:38.146.100.111 ip4:38.84.63.111 include:us._netblocks.mimecast.com include:spf-us.emailsignatures365.com ~all
softfail (~all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

from 2026-04-30 to 2026-07-29

Expires in 71 days

Full certificate history on crt.sh ↗