urlquery Suspicious - Suspicious Javascript code
VerdictSuspicious
Severitymedium
WEBSITE ANALYSIS REPORT
http://refer.tldr.tech
public
Suspicious activity
Review evidence →1 detection · review the detection signals
Report summary
Submitted and final observations · captured HTTP activity
- Submitted URL
- http://refer.tldr.tech
- Submitted IP / ASN
44.194.192.16 AS14618 · Amazon.com, Inc.
- Final URL
- https://tldr.tech/infosec
- Final IP / ASN
- 76.76.21.21 AS16509 · AMAZON-02
Final page
- Page title
- tldr.tech/infosec
- Final DOM MIME
- text/plain; charset=utf-8
- Final DOM size
- 0 B (0 bytes)
Detections
Activity
- HTTP requests
- 66
- Observed hosts
- 12
- Script records
- 58
Estimated HTTP data
- Sent
- ~53.4 KB
- Received
- ~3.43 MB
Page capture
Final browser state
Detection signals
URLQuery findings, Threat Detection Systems, and IDS alerts
URLQuery
1Host infrastructure
Observed hosts are context, not independent maliciousness verdicts
| Host | Rank | Registered | First seen | Last seen | Sent | Received | IP | Fingerprints |
|---|---|---|---|---|---|---|---|---|
| tldr.tech | 174156 | 2018-04-13 | 2015-10-25 | 2026-10-04 | 41.5 KB | 2.20 MB | 76.76.21.21 | Vercel PaaS Vercel is a cloud platform for static frontends and serverless functions. HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. Envoy Reverse proxies Envoy is an open-source edge and service proxy, designed for cloud-native applications. React JavaScript frameworks React is an open-source JavaScript library for building user interfaces or UI components. Webpack Miscellaneous Webpack is an open-source JavaScript module bundler. Next.js JavaScript frameworks, Web frameworks Next.js is a React framework for developing single page Javascript applications. Node.js Programming languages Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser. C3.js JavaScript libraries D3 based reusable chart library |
| challenges.cloudflare.com | 11393 | 2009-02-17 | 2021-10-20 | 2026-10-11 | 983 B | 85.6 KB |  104.18.95.41 | 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. |
| js.sparkloop.app 1 alerts | 491586 | 2019-10-29 | 2022-05-16 | 2026-10-08 | 949 B | 535 B | 172.66.164.105 | 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. |
| bzrcdn.openai.com | N/A | 2007-01-19 | 2026-04-19 | 2026-10-08 | 919 B | 83.3 KB | 104.18.36.216 | Cloudflare Bot Management Security Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots. Livewire Web frameworks, Miscellaneous Livewire is a full-stack Laravel framework for building dynamic interfaces. Laravel Web frameworks Laravel is a free, open-source PHP web framework. 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. |
| dash.sparkloop.app | 449140 | 2019-10-29 | 2019-11-19 | 2026-10-02 | 490 B | 37.6 KB | 172.66.164.105 | 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. |
| script-settings.sparkloop.app | N/A | 2019-10-29 | 2025-09-01 | 2026-10-05 | 473 B | 94.8 KB | 172.66.164.105 | 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.googletagmanager.com | 283 | 2011-11-11 | 2012-10-04 | 2026-10-11 | 974 B | 789.3 KB | 142.250.178.104 | HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. |
| bzr.openai.com | N/A | 2007-01-19 | 2026-04-19 | 2026-10-10 | 536 B | 1.0 KB | 172.64.151.22 | 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. Cloudflare Bot Management Security Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots. |
| beehiiv-adnetwork-production.s3.amazonaws.com | 842998 | 2005-08-18 | 2024-09-14 | 2026-09-29 | 473 B | 20.2 KB | 16.15.255.47 | Amazon S3 CDN Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface. Amazon Web Services PaaS Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality. |
| js.hs-scripts.com | 18499 | 2016-07-11 | 2016-08-09 | 2026-10-05 | 453 B | 3.1 KB | 104.16.139.209 | 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. |
| refer.tldr.tech | N/A | 2018-04-13 | 2025-06-02 | 2026-09-14 | 1.3 KB | 1.4 KB | 44.194.192.16 | Express Web frameworks, Web servers Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs. Node.js Programming languages Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser. 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. |
| script.sparkloop.app | 487083 | 2019-10-29 | 2023-08-29 | 2026-10-08 | 448 B | 136.4 KB | 172.66.164.105 | 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. |