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Section 5.9 Solution: Rewrite URLs and Host headers
5.9 Solution: Rewrite URLs and Host headers sub vcl_recv { set req.http.x-host = req.http.host; set req.http.x-url = req.url; set req.http.host = regsub(req.http.host, "^www\.", ""); if (req.http.host == "sport.example.com") { set req.http.host = "example.com"; set req.url = regsub(req.url, "^", "/sport"); } // Or: if (req.http.host ~ "^sport\.") { set req.http.host = regsub(req.http.host,"^sport\.", ""); set req.url = regsub(req.url, "^", "/sport"); } } Note how both are valid.