varnishtop -i TxStatus
Log client requests (you can also add :503 to check only for 503 being returned to a client
varnishncsa -F "%r %s" | grep " 200"
Give the url that returns 200
varnishlog -c -m RxURL:/specific/url/
Only show client-requests for the url /specific/url
varnishlog -O -i ReqEnd
Only show the ReqEnd tag. Useful to spot sporadic slowdown. Watch the last three values of it.
varnishlog -O -i TxURL
Only show the URLs sent to backend servers. E.g: Cache misses and content not cached.
varnishlog -O -i RxHeader -I Accept-Encoding
Show the Accept-Encoding response header.
varnishlog -b -m TxRequest:POST
Show backend requests using the POST method.
varnishlog -O -i TxURL,TxHeader TxURL,TxHeader
Only shows the URL sent to a backend server and all headers sent, either to a client or backend.