Not sure what information is being passed by your web browser to a site you are visiting? This small utility displays all request headers being passed by a web request sent to portchekers.com
| Connection | Keep-Alive |
|---|---|
| Accept | text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 |
| Accept-Encoding | gzip |
| Accept-Language | en-US,en;q=0.5 |
| Host | www.portcheckers.com |
| If-Modified-Since | Sun, 19 Sep 2021 11:22:22 GMT |
| User-Agent | CCBot/2.0 (https://commoncrawl.org/faq/) |
| cf-ipcountry | US |
| x-forwarded-for | 3.80.3.192 |
| cf-ray | 6a3468b0deec59c7-IAD |
| x-forwarded-proto | https |
| cf-visitor | {"scheme":"https"} |
| cf-connecting-ip | 3.80.3.192 |
| cdn-loop | cloudflare |
When you open a page through a browser, typing in the address bar, there is a connection to a remote server, usually to port 80. Such a request is called GET-request - this is one of the main types of HTTP-protocol requests. Sending a request, as well as its contents, usually hidden from users, but there is nothing secret about them.