网站TTFB时间10s~60s，如何解决？

Question

查看网站页面TTFB主要花在HTTP_STREAM_PARSER_READ_HEADERS的时间上，下面不知道如何解决，请教？
日志记录如下
t=209508 [st= 4] +HTTP_TRANSACTION_READ_HEADERS [dt=18148]
t=209508 [st= 4] HTTP_STREAM_PARSER_READ_HEADERS [dt=18148]
t=227656 [st=18152] HTTP_TRANSACTION_READ_RESPONSE_HEADERS
--> HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/html; charset=utf-8
Content-Encoding: gzip
Vary: Accept-Encoding
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Mon, 11 Jul 2016 02:45:17 GMT
Content-Length: 3138
t=227656 [st=18152] -HTTP_TRANSACTION_READ_HEADERS
t=227656 [st=18152] HTTP_CACHE_WRITE_INFO [dt=0]
t=227656 [st=18152] HTTP_CACHE_WRITE_DATA [dt=0]
t=227656 [st=18152] HTTP_CACHE_WRITE_INFO [dt=0]
t=227656 [st=18152] URL_REQUEST_DELEGATE [dt=0]
t=227656 [st=18152] -URL_REQUEST_START_JOB
t=227656 [st=18152] +URL_REQUEST_DELEGATE [dt=0]
t=227656 [st=18152] DELEGATE_INFO [dt=0]
--> delegate_info = "CrossSiteResourceHandler"
t=227656 [st=18152] -URL_REQUEST_DELEGATE

Answer 1

用了什么框架吗？
框架复杂度问题 越复杂的框架 请求时间越长