curl trace

curl -v -k -S -o api.html "https://docs.microsoft.com/en-us/dotn
et/api/?view=netstandard-2.0&term=System.Runtime.Serialization.DataContractSeria
lizer"

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0*
  Trying 2.19.181.50...
* Connected to docs.microsoft.com (2.19.181.50) port 443 (#0)
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* TLSv1.2 (OUT), TLS header, Certificate Status (22):
} [5 bytes data]
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
} [512 bytes data]
* TLSv1.2 (IN), TLS handshake, Server hello (2):
{ [108 bytes data]
* TLSv1.2 (IN), TLS handshake, Certificate (11):
{ [3374 bytes data]
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
{ [333 bytes data]
* TLSv1.2 (IN), TLS handshake, Server finished (14):
{ [4 bytes data]
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
} [70 bytes data]
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
} [1 bytes data]
* TLSv1.2 (OUT), TLS handshake, Finished (20):
} [16 bytes data]
* TLSv1.2 (IN), TLS change cipher, Client hello (1):
{ [1 bytes data]
* TLSv1.2 (IN), TLS handshake, Finished (20):
{ [16 bytes data]
* SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384
* ALPN, server accepted to use http/1.1
* Server certificate:
*        subject: C=US; ST=WA; L=Redmond; O=Microsoft Corporation; OU=Microsoft
Corporation; CN=docs.microsoft.com
*        start date: Mar  9 17:10:10 2017 GMT
*        expire date: Mar  9 17:10:10 2018 GMT
*        issuer: C=US; ST=Washington; L=Redmond; O=Microsoft Corporation; OU=Microsoft IT; CN=Microsoft IT SSL SHA2
*        SSL certificate verify result: unable to get local issuer certificate (
20), continuing anyway.
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0}
[5 bytes data]
> GET /en-us/dotnet/api/?view=netstandard-2.0&term=System.Runtime.Serialization.DataContractSerializer HTTP/1.1
> Host: docs.microsoft.com
> User-Agent: curl/7.46.0
> Accept: */*
>
{ [5 bytes data]
< HTTP/1.1 200 OK
< Last-Modified: Tue, 10 Oct 2017 16:25:47 GMT
< Content-Type: text/html
< Server: Kestrel
< X-Datacenter: eus
< X-Frame-Options: DENY
< x-content-type-options: nosniff
< X-UA-Compatible: IE=edge
< X-XSS-Protection: 1; mode=block
< Strict-Transport-Security: max-age=31536000; includeSubDomains
< X-Rendering-Stack: Dynamic
< X-Powered-By: ASP.NET
< Cache-Control: public, max-age=600
< Expires: Wed, 11 Oct 2017 18:04:08 GMT
< Date: Wed, 11 Oct 2017 17:54:08 GMT
< Content-Length: 6293
< Connection: keep-alive
< x-cache-hit: false
<
{ [6293 bytes data]
100  6293  100  6293    0     0   4583      0  0:00:01  0:00:01 --:--:--  4637
* Connection #0 to host docs.microsoft.com left intact