GET /echoback HTTP/1.1
User-Agent: CCBot/2.0 (https://commoncrawl.org/faq/)
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
If-Modified-Since: Sat, 16 Jan 2021 18:25:55 GMT
Accept-Encoding: br,gzip
Host: brokenlinkcheckerchecker.com
Connection: Keep-Alive