This is a demo. The Debug panel is shown below.
Click to sample to javascript trace writer

x DEBUG PANEL
Show AllShow NoneJS DebuggerSession InfoWeb Server
RequestTraceControl TreeSessionApplicationCookies-ReqCookies-RespHeaders-ReqHeaders-RespFormQueryStringServerVars
JavaScript Debugger:
Action:Execute / Show Object
Statement/Object:
Result:
Session Info:
Forms Authentication:
Culture:en-US
Code Page:65001
LCID:0x409
Theme:
Mode:InProc
Cookieless:False
New Session:True
Synchronized:False
Timeout:20 min
Script Timeout:500000 min
ViewState bytes
Browser Info
Web Server:
Machine Name:HGWS7
OS Version:Microsoft Windows NT 10.0.14393.0
CLR Version:4.0.30319.42000

Request Details

Session Id:troesouf124jyo2hmltbih4wRequest Type:GET
Time of Request:11/21/2019 7:53:40 AMStatus Code:200
Request Encoding:Unicode (UTF-8)Response Encoding:Unicode (UTF-8)

Trace Information

CategoryMessageFrom First(s)From Last(s)
aspx.pageBegin PreInit
aspx.pageEnd PreInit0.0000370.000037
aspx.pageBegin Init0.0000740.000037
aspx.pageEnd Init0.0002090.000135
aspx.pageBegin InitComplete0.0002200.000011
aspx.pageEnd InitComplete0.0002280.000008
aspx.pageBegin PreLoad0.0002400.000012
aspx.pageEnd PreLoad0.0002470.000007
aspx.pageBegin Load0.0002550.000008
DemoTraceThis is from an optional demo trace logger.0.0010880.000833
aspx.pageEnd Load0.0077870.006699
aspx.pageBegin LoadComplete0.0078100.000023
aspx.pageEnd LoadComplete0.0078190.000009
aspx.pageBegin PreRender0.0078270.000008
aspx.pageEnd PreRender0.0078430.000016
aspx.pageBegin PreRenderComplete0.0078530.000010
aspx.pageEnd PreRenderComplete0.0078610.000008
aspx.pageBegin SaveState0.0081170.000256
aspx.pageEnd SaveState0.0083900.000273
aspx.pageBegin SaveStateComplete0.0084070.000017
aspx.pageEnd SaveStateComplete0.0084150.000008
aspx.pageBegin Render0.0084220.000007
aspx.pageEnd Render0.0086680.000247

Control Tree

Control UniqueIDTypeRender Size Bytes (including children)ViewState Size Bytes (excluding children)ControlState Size Bytes (excluding children)
__PageASP.programming_dotnet_debug_demo_aspx916600
    ctl01System.Web.UI.ResourceBasedLiteralControl37500
    ctl00System.Web.UI.HtmlControls.HtmlForm43400
        ctl02System.Web.UI.LiteralControl13900
    ctl03System.Web.UI.LiteralControl200
    ctlDebugASP.programming_dotnet_debug_debug_ascx833700
        ctlDebug$ctl00System.Web.UI.ResourceBasedLiteralControl79100
        ctlDebug$dbgPanelSystem.Web.UI.HtmlControls.HtmlGenericControl754400
            ctlDebug$ctl01System.Web.UI.LiteralControl8700
            ctlDebug$dbgScriptSystem.Web.UI.WebControls.Literal6600
            ctlDebug$ctl02System.Web.UI.ResourceBasedLiteralControl289200
            ctlDebug$dbgSectionsSystem.Web.UI.WebControls.Literal428500
            ctlDebug$ctl03System.Web.UI.LiteralControl16300
        ctlDebug$ctl04System.Web.UI.LiteralControl200
    ctl04System.Web.UI.LiteralControl1800

Session State

Session KeyTypeValue
DevSystem.BooleanTrue

Application State

Application KeyTypeValue

Request Cookies Collection

NameValueSize

Response Cookies Collection

NameValueSize

Headers Collection

NameValue
ConnectionKeep-Alive
Accepttext/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encodinggzip
Accept-Languageen-US,en;q=0.5
Hostbeanland.net.au
If-Modified-SinceThu, 19 Sep 2019 16:43:17 UTC
User-AgentCCBot/2.0 (https://commoncrawl.org/faq/)

Response Headers Collection

NameValue
X-AspNet-Version4.0.30319
Cache-Controlprivate
Content-Typetext/html

Form Collection

NameValue

Querystring Collection

NameValue

Server Variables

NameValue
ALL_HTTPHTTP_CONNECTION:Keep-Alive HTTP_ACCEPT:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 HTTP_ACCEPT_ENCODING:gzip HTTP_ACCEPT_LANGUAGE:en-US,en;q=0.5 HTTP_HOST:beanland.net.au HTTP_IF_MODIFIED_SINCE:Thu, 19 Sep 2019 16:43:17 UTC HTTP_USER_AGENT:CCBot/2.0 (https://commoncrawl.org/faq/)
ALL_RAWConnection: Keep-Alive Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding: gzip Accept-Language: en-US,en;q=0.5 Host: beanland.net.au If-Modified-Since: Thu, 19 Sep 2019 16:43:17 UTC User-Agent: CCBot/2.0 (https://commoncrawl.org/faq/)
APPL_MD_PATH/LM/W3SVC/80/ROOT
APPL_PHYSICAL_PATHD:\InetPub\vhosts\beanland.net.au\httpdocs\
AUTH_TYPE 
AUTH_USER 
AUTH_PASSWORD 
LOGON_USER 
REMOTE_USER 
CERT_COOKIE 
CERT_FLAGS 
CERT_ISSUER 
CERT_KEYSIZE 
CERT_SECRETKEYSIZE 
CERT_SERIALNUMBER 
CERT_SERVER_ISSUER 
CERT_SERVER_SUBJECT 
CERT_SUBJECT 
CONTENT_LENGTH0
CONTENT_TYPE 
GATEWAY_INTERFACECGI/1.1
HTTPSoff
HTTPS_KEYSIZE 
HTTPS_SECRETKEYSIZE 
HTTPS_SERVER_ISSUER 
HTTPS_SERVER_SUBJECT 
INSTANCE_ID80
INSTANCE_META_PATH/LM/W3SVC/80
LOCAL_ADDR192.185.7.82
PATH_INFO/Programming/dotnet/Debug/demo.aspx
PATH_TRANSLATEDD:\InetPub\vhosts\beanland.net.au\httpdocs\Programming\dotnet\Debug\demo.aspx
QUERY_STRING 
REMOTE_ADDR3.93.75.242
REMOTE_HOST3.93.75.242
REMOTE_PORT40966
REQUEST_METHODGET
SCRIPT_NAME/Programming/dotnet/Debug/demo.aspx
SERVER_NAMEbeanland.net.au
SERVER_PORT80
SERVER_PORT_SECURE0
SERVER_PROTOCOLHTTP/1.1
SERVER_SOFTWAREMicrosoft-IIS/10.0
URL/Programming/dotnet/Debug/demo.aspx
HTTP_CONNECTIONKeep-Alive
HTTP_ACCEPTtext/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_ACCEPT_ENCODINGgzip
HTTP_ACCEPT_LANGUAGEen-US,en;q=0.5
HTTP_HOSTbeanland.net.au
HTTP_IF_MODIFIED_SINCEThu, 19 Sep 2019 16:43:17 UTC
HTTP_USER_AGENTCCBot/2.0 (https://commoncrawl.org/faq/)

Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3429.0