What powers greyflannelauctions.com?

Last seen Aug 2026 · 44 technologies across 22 categories

Analytics

Facebook Pixel v2.9.353
since Jul 2021
Google Analytics
since Jan 2019

CDN

cdnjs
since Feb 2024
Cloudflare
since Oct 2023
jsDelivr
since Jul 2020

CMS

WordPress v7.0.1
since Sep 2024

Databases

MySQL
since Sep 2024

Ecommerce

Cart Functionality
since Apr 2025

Email

Sendgrid
since Oct 2022

Font scripts

Font Awesome v6.4.2
since Feb 2024
Google Font API
since Sep 2024
Twitter Emoji (Twemoji)
since Jan 2026
Typekit
since Feb 2021

JavaScript libraries

core-js v3.32.2
since Sep 2021
FancyBox v5.0.36
since Nov 2024
jQuery v3.3.1
since Jan 2019
jQuery Migrate v3.4.1
since Sep 2024
jQuery UI v1.10.3
since May 2022
Slick
since Feb 2019
Splide
since Sep 2024
Swiper
since Apr 2025

Miscellaneous

HTTP/3
since Oct 2025
Open Graph
since Sep 2024
RSS
since Sep 2024

Operating systems

Windows Server
since Jan 2019

Page builders

WordPress Block Editor
since Sep 2024

Programming languages

PHP
since Sep 2024

Security

hCaptcha
since Sep 2024
HSTS
since Oct 2024
reCAPTCHA
since Sep 2024

SEO

Yoast SEO Premium v27.9
since Oct 2024

Tag managers

Google Tag Manager
since Apr 2019

UI frameworks

Bootstrap v3.3.5
since Apr 2019

Video players

YouTube
since Sep 2024

Web Frameworks

Microsoft ASP.NET
since Jan 2017

Web Servers

IIS v10.0
since Jan 2017

Webmail

Google Workspace
since Aug 2022

WordPress plugins

Site Kit v1.182.0
since Sep 2024
Spectra v2.19.29
since Sep 2024
WPForms
since Sep 2024
Yoast SEO v28.0
since Oct 2024

WordPress themes

Astra v4.8.3
since Sep 2024

AI Crawlers

Blocks 8 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.

Training crawlers

  • Applebot-Extended Blocked
  • Bytespider Blocked
  • CCBot Blocked
  • ClaudeBot Blocked
  • Google-Extended Blocked
  • GPTBot Blocked
  • meta-externalagent Blocked

Search and AI assistants

  • Amazonbot Blocked

The other 25 AI crawlers we track are not mentioned and stay allowed by default.

  • robots.txt found
  • llms.txt not found
  • ai.txt not found

Content Signals: search=yes ai-train=no declared in robots.txt

See who blocks each AI crawler across the web

AI Crawlers

8 of 33 AI crawlers blocked

Standards: Content Signals

Full breakdown

Audience

  • 59% phone
  • 41% desktop
  • United States
  • Canada

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

3.17 / 10 · ranked #1,315,078 of all domains

74 referring domains · OpenPageRank

Core Web Vitals

LCP1.8 s
INP100 ms
CLS0
TTFB800 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: English (United States)
  • CDN: Cloudflare
  • Weight: 15.3 MB · 213 requests
  • WordPress theme: astra (child: gfa-astra-child) · all themes
  • Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Sep 2026.

Organisation

From the homepage's own structured data (Sep 2026).

Infrastructure

  • Hosted on Cloudflare (104.26.0.41, IPv6)
  • Email: Google Workspace
  • Email security: no SPF record, DMARC monitor only
  • SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
  • Common Crawl link graph: rank 2,289,686, 4 hosts
  • Verified with: Brevo, GlobalSign, Google

DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted

Subdomains

HostTechs
greyflannelauctions.com 31
www.greyflannelauctions.com 18
bid.greyflannelauctions.com 13

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