Privacy notice

Last updated 3 October 2026

This notice explains how Corenexis CDN (cdn.corenexis.com) handles data. It adds detail specific to the CDN and does not replace the Corenexis Privacy Policy, which applies to all Corenexis services.

Files you upload

• Files reach the CDN through Corenexis tools and the Corenexis API. Each file is available at a public link that anyone who has the link can open.
• Every upload has an expiry time. When it passes, the file is deleted automatically.
• Do not upload anything you would not want made public.

Automated safety checks

Uploaded images are checked automatically shortly after upload. The checks compare images against known child sexual abuse material using a specialised hash-matching service, and use an automated classifier to detect sexually explicit content. Images that fail these checks are removed from public access. Where the law requires it, removed material and related records are preserved and reported to the relevant authorities.

Request logs

Like any web service, our servers and our network provider, Cloudflare, process technical data such as IP addresses, browser type and the time of each request, to deliver files, prevent abuse and keep the service secure.

Upload records

• For every image uploaded we record when it was uploaded, its link and when it expires.
• For uploads through the Corenexis API we also record which account made the upload.
• For uploads through our website tools (such as the Image to URL tools on tools.corenexis.com and sigmawire.net) we also record the uploader's IPv4 and IPv6 addresses, the approximate location Cloudflare derives from them (country, region, city, postal code, time zone), the device type, operating system, browser and language, and the page the upload came from.
• We use these records only to investigate abuse, to act on reports and to answer lawful requests. They are visible only to the Corenexis staff who handle reports, and are deleted 180 days after the upload.
• Where the law requires it, or where we find illegal material, we may share these records and the related account details (but not payment information) with law enforcement and other competent authorities.

Abuse reports and removal requests

• When you use the report form we store your name, your email address, the links you report, any details you add, and a one-way hash of your network address used only to limit misuse of the form.
• This information is visible only to the Corenexis staff who review reports. We use your email address to tell you the outcome or to ask about your report, and for nothing else.
• If a report concerns content we are legally required to report, the report may be shared with law enforcement.
• Reports, and files removed because of them, are kept for 180 days and then deleted, unless they are part of a case reported to the authorities.

Content removed after a report

Files removed after a report are taken off public access straight away and kept in private storage that is not reachable from the internet, so that the decision can be reviewed and, where required, the material can be handed to the authorities.

Contact

Privacy questions: [email protected]. To have content removed, please use the report form so it reaches the right team quickly.