The journal
GDB is an editorial journal. It does not sell a list of readers and it does not run an advertising network.
The contact form asks for a name, a return address, and a message so the writers can read what you sent and, if a reply is warranted, write back. A reply is not guaranteed. Do not send files that contain client work or personal documents through the form.
The site is served through Cloudflare, which may process connection data such as IP address and browser type. The origin host may also keep request logs for a limited time for security and troubleshooting.