Other
1 detectedRSS
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Public technology profileFresh scan
paulgraham.com
Our latest scan of paulgraham.com detected 3 technologies across 3 categories. The strongest signals include RSS, Yahoo! Ecommerce, DigiCert.
3
Technologies
3
Categories
98%
Avg. confidence
Today
Last scanned
Current snapshot
Detected technology stack
Grouped by category · confidence is detection certainty
Ecommerce
1 detectedYahoo! Ecommerce
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Security
1 detectedDigiCert
First seen Jul 17, 2026Last seen Jul 17, 2026
95%
confidence
Publisher intelligence
Advertising ecosystem
Declared direct and reseller relationships from ads.txt and app-ads.txt. These are publisher declarations, not runtime detections.
Declaration files
0/2
ads.txt and app-ads.txt
Direct relationships
0
Reseller relationships
0
Declared systems
0
Counted per declaration file
ads.txt
Not presentHTTP 404
- Direct
- 0
- Reseller
- 0
- Systems
- 0
app-ads.txt
Not presentHTTP 404
- Direct
- 0
- Reseller
- 0
- Systems
- 0
Infrastructure
Network and security
DNS, hosting, TLS and email-security evidence observed during the latest scan. Incomplete lookups remain explicitly unknown.
Transport and email security
HTTPSObserved
HSTSNot observed on scanned response
SPFLookup incomplete
DMARCLookup incomplete
Network footprint
Site signals
Content and capabilities
Structured data, languages, social platforms and page capabilities observed across the scanned pages.
No additional structured page signals were retained for this scan.
Recent technology changes
Observed changes between stored scans, not vendor-confirmed installation dates.