Public technology profileFresh scan
atcoder.jp
Our latest scan of atcoder.jp detected 19 technologies across 9 categories. The strongest signals include AddToAny, Amazon CloudFront, Bootstrap.
19
Technologies
9
Categories
97%
Avg. confidence
Today
Last scanned
Current snapshot
Detected technology stack
Grouped by category · confidence is detection certainty
Analytics
3 detectedGlobal Site Tag
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Google Analytics
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Google Analytics 4
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Other
2 detectedCDN & delivery
2 detectedAmazon CloudFront
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
jsDelivr
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Backend
2 detectedHosting & infrastructure
2 detectedAmazon Route 53
First seen Jul 17, 2026Last seen Jul 17, 2026
95%
confidence
Amazon Web Services
First seen Jul 17, 2026Last seen Jul 17, 2026
80%
confidence
Frontend
1 detectedGoogle Font API
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Frameworks
1 detectedRevel
First seen Jul 17, 2026Last seen Jul 17, 2026
100%
confidence
Tag management
1 detectedGoogle Tag Manager
First seen Jul 17, 2026Last seen Jul 17, 2026
85%
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
HSTSObserved on scanned response
SPFConfigured
DMARCConfigured · none
Network footprint
Site signals
Content and capabilities
Structured data, languages, social platforms and page capabilities observed across the scanned pages.
Observed capabilities
Responsive viewportApple touch iconGoogle site verificationLoginContact page
1 form elements observed across scanned pages.
Recent technology changes
Observed changes between stored scans, not vendor-confirmed installation dates.