SPF Usage Statistics · Download List of All Websites using SPF
The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.
DMARC Usage Statistics · Download List of All Websites using DMARC
A technical specification created by a group of organizations that want to help reduce the potential for email-based abuse
DMARC
DMARC Reject Usage Statistics · Download List of All Websites using DMARC Reject
The domain has a DMARC policy of 'Reject'. This policy tells the mail server to reject emails that fail DMARC checks, preventing them from being delivered at all.
Apache Usage Statistics · Download List of All Websites using Apache
Apache has been the most popular web server on the Internet since April 1996.
Apache 2.4 Usage Statistics · Download List of All Websites using Apache 2.4
Apache version 2.4.*
AlmaLinux Usage Statistics · Download List of All Websites using AlmaLinux
Open-source, community-driven Linux operating system.
Last technology detected on 15th August 2025. We know of 6 technologies on this page and 0 technologies removed from astro.ao since 15th August 2025. Link to this page.
Unlimited detailed lookups - normally $144 / year.
Add BuiltWith to for free! Get lookups easily and quickly.
Get a notification when astro.ao adds new technologies.
Get astro.ao profile as an XML, JSON, CSV or XLSX via the Domain API.
Can't find the technology you are looking for? Send us a suggestion, we will try and add it to our database.