http://tera4k.com
Report summary
Submitted and final observations · captured HTTP activity
- Submitted URL
- http://tera4k.com
- Submitted IP / ASN
172.67.162.232 AS13335 · CLOUDFLARENET
- Final URL
- https://www.cloudflare.com/5xx-error-landing/?utm_source=errorcode_521&utm_campaign=tera4k.com
- Final IP / ASN
- 104.16.123.96 AS13335 · CLOUDFLARENET
Final page
- Page title
- 5xx Error | Cloudflare
- Final DOM MIME
- text/html; charset=utf-8
- Final DOM size
- 523.0 KB (535595 bytes)
Detections
Activity
- HTTP requests
- 103
- Observed hosts
- 25
- Script records
- 21
Estimated HTTP data
- Sent
- ~74.8 KB
- Received
- ~5.74 MB
Page capture
Final browser state
available for this report.
Detection signals
URLQuery findings, Threat Detection Systems, and IDS alerts
Absence of findings is not a clean verdict.
Host infrastructure
Observed hosts are context, not independent maliciousness verdicts
| Host | Rank | Registered | First seen | Last seen | Sent | Received | IP | Fingerprints |
|---|---|---|---|---|---|---|---|---|
| benchmark.1e100cdn.net | 69376 | 2016-01-26 | 2016-02-04 | 2026-08-20 | 525 B | 100.3 KB |  35.190.26.57 | 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. |
| cf-assets.www.cloudflare.com | 575861 | 2009-02-17 | 2022-01-07 | 2026-08-23 | 22.2 KB | 171.5 KB | 104.16.123.96 | 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. Cloudflare Bot Management Security Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots. |
| tera4k.com | N/A | 2023-10-28 | 2024-10-26 | 2026-07-07 | 3.8 KB | 32.2 KB | 172.67.162.232 | 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. |
| benchmarks.cdn-c.compute-pipe.com | N/A | 2021-12-02 | 2025-12-07 | 2026-08-18 | 536 B | 100.3 KB | 104.18.29.178 | 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. |
| www.cloudflare-terms-of-service-abuse.com | 962078 | 2020-11-06 | 2021-01-07 | 2026-08-22 | 2.7 KB | 120.2 KB | 104.18.10.145 | 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. Cloudflare Bot Management Security Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots. |
| fastly.jsdelivr.net | 208496 | 2012-05-16 | 2018-03-19 | 2026-08-22 | 550 B | 100.7 KB | 151.101.1.229 | HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. |
| 1xtsor1-m.ns1pcdn.net | 415171 | 2020-06-30 | 2020-11-20 | 2026-08-23 | 521 B | 127.6 KB | 143.204.238.33 | Amazon Web Services PaaS Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality. Envoy Reverse proxies Envoy is an open-source edge and service proxy, designed for cloud-native applications. 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. |
| testingcf.jsdelivr.net | 581907 | 2012-05-16 | 2021-07-08 | 2026-08-19 | 553 B | 101.0 KB | 104.17.207.5 | 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. HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. |
| jsdelivr.b-cdn.net | 749085 | 2016-04-25 | 2021-09-09 | 2026-08-18 | 549 B | 100.9 KB |  194.242.11.186 | Bunny CDN Not recorded HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. |
| 1xtvhvx-m.ns1pcdn.net | 413558 | 2020-06-30 | 2026-02-23 | 2026-08-17 | 520 B | 127.4 KB | 104.18.26.232 | Envoy Reverse proxies Envoy is an open-source edge and service proxy, designed for cloud-native applications. 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. |
| ot.www.cloudflare.com | 613167 | 2009-02-17 | 2024-09-04 | 2026-08-19 | 4.8 KB | 655.7 KB | 104.16.123.96 | Cloudflare Bot Management Security Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots. 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. |
| privacyportal.onetrust.com | 16579 | 2004-01-12 | 2018-05-24 | 2026-08-20 | 588 B | 463 B | 172.64.155.119 | HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. 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. |
| performance.radar.cloudflare.com | 418040 | 2009-02-17 | 2022-06-29 | 2026-08-17 | 1.6 KB | 11.5 KB | 104.18.30.78 | 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. Cloudflare Bot Management Security Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots. HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. |
| cedexis-test.akamaized.net | 740410 | 2014-03-18 | 2020-08-26 | 2026-08-19 | 533 B | 399 B | 23.214.96.155 | 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. |
| challenges.cloudflare.com | 11393 | 2009-02-17 | 2021-10-20 | 2026-08-16 | 951 B | 83.1 KB | 104.18.94.41 | 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. |
| benchmarks.cdn.compute-pipe.com | 707939 | 2021-12-02 | 2024-06-19 | 2026-08-23 | 534 B | 100.3 KB | 172.64.148.194 | 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. |
| 1lmnv6z-m.ns1pcdn.net | 411760 | 2020-06-30 | 2026-02-23 | 2026-08-23 | 520 B | 127.5 KB | 23.33.119.35 | Envoy Reverse proxies Envoy is an open-source edge and service proxy, designed for cloud-native applications. |
| ns1p-aws-backed.global.ssl.fastly.net | 422107 | 2011-04-18 | 2025-10-09 | 2026-08-18 | 537 B | 127.6 KB | 151.101.129.194 | Envoy Reverse proxies Envoy is an open-source edge and service proxy, designed for cloud-native applications. Varnish Caching Varnish is a reverse caching proxy. |
| www.googletagmanager.com | 283 | 2011-11-11 | 2012-10-04 | 2026-08-16 | 492 B | 634 B | 142.250.178.104 | |
| 9y49n2-m.ns1pcdn.net | 419464 | 2020-06-30 | 2020-07-17 | 2026-08-23 | 520 B | 127.6 KB |  80.240.113.62 | 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. Gcore CDN Gcore is a public cloud and content delivery network (CDN) company. |
| 1a4s4dv-m.ns1pcdn.net | 419136 | 2020-06-30 | 2020-07-20 | 2026-08-19 | 521 B | 0 B | Not recorded | |
| 5bav82-m.ns1pcdn.net | 411288 | 2020-06-30 | 2025-08-12 | 2026-08-23 | 520 B | 127.8 KB | 34.111.241.208 | 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. Google Cloud Storage Miscellaneous Google Cloud Storage allows world-wide storage and retrieval of any amount of data at any time. |
| www.cloudflare.com | 26817 | 2009-02-17 | 2012-05-22 | 2026-08-18 | 23.5 KB | 3.13 MB | 104.16.123.96 | HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. 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. Cloudflare Bot Management Security Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots. React JavaScript frameworks React is an open-source JavaScript library for building user interfaces or UI components. OneTrust Cookie compliance OneTrust is a cloud-based data privacy management compliance platform. |
| kgnvry-ns1p.b-cdn.net | 412935 | 2016-04-25 | 2025-12-09 | 2026-08-20 | 521 B | 127.7 KB | 194.242.11.186 | Bunny CDN Not recorded |
| benchmarks.cdn-b.compute-pipe.com | N/A | 2021-12-02 | 2025-12-02 | 2026-08-19 | 536 B | 100.3 KB | 162.159.140.104 | 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. |