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2026-08-01 crawl · observed, not inferred

Technology used by fourbrothersinc.com

American-made Kydex holsters for IWB, OWB, duty, and EDC. Four Brothers Holsters delivers fast, reliable fit for top pistols and lights. Built to perform.

30
technologies detected

Recent changes

2026-07-01 dropped Shopify Chatconfirmed
2026-03-01 dropped Reactconfirmed
2026-03-01 dropped Tailwind CSSconfirmed
2026-01-01 dropped Shopify Chatprovisional

Full detected stack

Everything detected on this domain in the latest monthly crawl, grouped by what it does. ↩ marks when we first observed it — no later than that date, not necessarily when they adopted it. Faded dates were seen in fewer than four crawls.

Payment processors
Visa↩ Sept 2020Shop Pay↩ Sept 2020Mastercard↩ Oct 2021Google Pay↩ Sept 2020Apple Pay↩ Sept 2020American Express↩ Sept 2020Amazon Pay↩ Dec 2024
JavaScript libraries
core-js2.6.12↩ Aug 2021Preact↩ Nov 2024jQuery1.12.4↩ Sept 2020
CDN
Imgix↩ Jan 2025Google Hosted Libraries↩ Sept 2024Cloudflare↩ Sept 2020
Ecommerce
Cart Functionality↩ Sept 2020Shopify↩ Sept 2020
Reviews
Judge.me↩ Dec 2024Yotpo Reviews↩ Jun 2022
Analytics
Google Analytics↩ Sept 2020Facebook Pixel2.9.377↩ Jul 2021
Miscellaneous
Open Graph↩ Sept 2022HTTP/3↩ Sept 2022
UI frameworks
Tailwind CSS↩ May 2025
Shopify apps
Bold Product Options2.15.20↩ Jun 2022
JavaScript frameworks
React↩ Feb 2023
Personalisation
Bold Commerce↩ Jun 2022
Performance
Priority Hints↩ Feb 2023
Marketing automation
Klaviyo↩ Jun 2023
Security
HSTS↩ Sept 2022
Webmail
Google Workspace↩ Aug 2022
Tag managers
Google Tag Manager↩ Jul 2025
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