Cloudflare DNS Sinkholed
VerdictMalicious
Severitymedium
WEBSITE ANALYSIS REPORT
https://www.i21h.com/article/639143880148708760/Common-Thunderbird-Email-Login-Problems-and-How-to-Fix-Them-Fast
public
Report summary
Submitted and final observations · captured HTTP activity
- Submitted URL
- https://www.i21h.com/article/639143880148708760/Common-Thunderbird-Email-Login-Problems-and-How-to-Fix-Them-Fast
- Submitted IP / ASN
172.67.150.237 AS13335 · CLOUDFLARENET
- Final URL
- https://www.i21h.com/article/639143880148708760/Common-Thunderbird-Email-Login-Problems-and-How-to-Fix-Them-Fast
- Final IP / ASN
- 172.67.150.237 AS13335 · CLOUDFLARENET
Final page
- Page title
- Common Thunderbird Email Login Problems and How to Fix Them Fast
- Final DOM MIME
- text/html; charset=utf-8
- Final DOM size
- 60.7 KB (62164 bytes)
Detections
Activity
- HTTP requests
- 48
- Observed hosts
- 15
- Script records
- 14
Estimated HTTP data
- Sent
- ~30.1 KB
- Received
- ~2.07 MB
Page capture
Final browser state
Detection signals
URLQuery findings, Threat Detection Systems, and IDS alerts
Threat Detection Systems
4DigiCert UltraDNS Sinkholed
VerdictMalicious
Severitymedium
Quad9 DNS Sinkholed
VerdictMalicious
Severitymedium
DNS4EU Sinkholed
VerdictMalicious
Severitymedium
Host infrastructure
Observed hosts are context, not independent maliciousness verdicts
| Host | Rank | Registered | First seen | Last seen | Sent | Received | IP | Fingerprints |
|---|---|---|---|---|---|---|---|---|
| adexchangerapid.com 12 alerts | N/A | 2026-04-28 | 2026-04-28 | 2026-05-12 | 4.3 KB | 7.0 KB | 172.67.222.246 | Cloudflare CDN Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services. Google Cloud CDN CDN Cloud CDN uses Google's global edge network to serve content closer to users. Google Cloud IaaS Google Cloud is a suite of cloud computing services. |
| acscdn.com 6 alerts | 18769 | 2020-05-05 | 2020-05-06 | 2026-05-08 | 1.2 KB | 281.1 KB | 104.18.16.201 | Cloudflare CDN Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services. Google Cloud Storage Miscellaneous Google Cloud Storage allows world-wide storage and retrieval of any amount of data at any time. Google Cloud IaaS Google Cloud is a suite of cloud computing services. |
| fonts.gstatic.com | N/A | 2008-02-11 | 2014-04-02 | 2026-05-10 | 2.1 KB | 34.0 KB |  142.251.143.131 | |
| buttons-config.sharethis.com | 41133 | 1999-03-02 | 2017-05-04 | 2026-05-07 | 444 B | 1.2 KB | 108.157.214.61 | Amazon CloudFront CDN Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds. Amazon Web Services PaaS Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality. HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. |
| fonts.googleapis.com | 313 | 2005-01-25 | 2012-05-23 | 2026-05-10 | 458 B | 6.2 KB | 142.251.142.234 | HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. |
| platform-api.sharethis.com | 38084 | 1999-03-02 | 2017-01-29 | 2026-05-09 | 427 B | 209.3 KB | 65.9.62.93 | Amazon Web Services PaaS Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality. HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. Amazon CloudFront CDN Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds. |
| count-server.sharethis.com | 75442 | 1999-03-02 | 2017-01-04 | 2026-04-20 | 583 B | 770 B | 108.157.229.16 | Amazon Web Services PaaS Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality. HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. Amazon CloudFront CDN Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds. |
| datasphere-sbsvc.sharethis.com | 253704 | 1999-03-02 | 2022-09-05 | 2026-02-10 | 452 B | 699 B | 108.157.214.80 | Amazon CloudFront CDN Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds. Amazon Web Services PaaS Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality. |
| l.sharethis.com | 30086 | 1999-03-02 | 2012-05-21 | 2026-05-06 | 1.3 KB | 399 B |  18.197.5.244 | HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. |
| region1.google-analytics.com | 19689 | 2005-07-18 | 2022-03-17 | 2026-05-14 | 1007 B | 846 B | 216.239.32.36 | |
| usrpubtrk.com 3 alerts | 6824 | 2025-06-16 | 2025-06-17 | 2026-05-08 | 484 B | 560 B | 104.21.92.33 | Cloudflare CDN Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services. Google Cloud CDN CDN Cloud CDN uses Google's global edge network to serve content closer to users. Google Cloud IaaS Google Cloud is a suite of cloud computing services. |
| www.i21h.com | N/A | 2025-07-18 | 2025-07-22 | 2026-05-14 | 13.0 KB | 1.07 MB | 172.67.150.237 | Microsoft ASP.NET Web frameworks ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages. Cloudflare CDN Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services. Google Analytics Analytics Google Analytics is a free web analytics service that tracks and reports website traffic. Microsoft ASP.NET:4.0.30319 Web frameworks ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages. Bootstrap UI frameworks Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components. ShareThis Widgets ShareThis provides free engagement and growth tools (e.g., share buttons, follow buttons, and reaction buttons) for site owners. jQuery JavaScript libraries jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax. |
| platform-cdn.sharethis.com | 71632 | 1999-03-02 | 2019-01-09 | 2026-04-20 | 1.8 KB | 4.8 KB | 65.9.46.121 | Amazon Web Services PaaS Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality. HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. Amazon CloudFront CDN Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds. |
| leostop.com 1 alerts | 463898 | 2014-05-22 | 2014-12-29 | 2026-05-12 | 433 B | 5.4 KB | 172.237.146.39 | OpenResty Web servers OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine. Nginx Web servers, Reverse proxies Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache. |
| www.googletagmanager.com | 283 | 2011-11-11 | 2012-10-04 | 2026-05-10 | 433 B | 467.0 KB | 216.58.201.232 | HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. |