FastHostInfo by Saphir
FastHostInfo is a privacy-focused Firefox extension that displays server location information and country flags for websites you visit.
2 Users2 Users
Extension Metadata
About this extension
Key Features:
- 🚩 Real-time country flag display in toolbar
- 🌍 Detailed IP geolocation (city, country, ASN, network)
- 🔍 DNS Tools: Query A, AAAA, MX, NS, TXT, CNAME, SOA, PTR, SRV records
- 📋 Copy DNS values to clipboard with one click
- 🔒 Privacy-first: Local IP lookups, no tracking
- ⚡ Fast performance with optimized binary search
- 🔄 Automatic database updates (configurable)
All IP lookups happen locally using cached databases. No personal data is collected or transmitted. Perfect for developers, network administrators, and privacy-conscious users who want to know where websites are hosted.
- 🚩 Real-time country flag display in toolbar
- 🌍 Detailed IP geolocation (city, country, ASN, network)
- 🔍 DNS Tools: Query A, AAAA, MX, NS, TXT, CNAME, SOA, PTR, SRV records
- 📋 Copy DNS values to clipboard with one click
- 🔒 Privacy-first: Local IP lookups, no tracking
- ⚡ Fast performance with optimized binary search
- 🔄 Automatic database updates (configurable)
All IP lookups happen locally using cached databases. No personal data is collected or transmitted. Perfect for developers, network administrators, and privacy-conscious users who want to know where websites are hosted.
Rated 5 by 2 reviewers
Permissions and data
Required permissions:
- Access browser tabs
- Access your data for all web sites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.6.0
- Size
- 1.44 MB
- Last updated
- 5 months ago (30 Dec 2025)
- Related Categories
- Licence
- MIT Licence
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection