URLResponseTime

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`URLResponseTime`

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URLResponseTime[url]

gives the total number of seconds to request one byte from the specified URL.

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URLResponseTime[url,prop]

gives the specified timing.

Details and Options

The URL may be specified as "url" or URL["url"]. IPAddress["host:protocol"] is also supported.
The URL given can be just a host name, in which case the default HTTP port (80) is assumed.
If a URL cannot be reached, URLResponseTime returns $Failed.
Possible properties in URLResponseTime include:

	All	an association of all timings
	"ConnectionTimes"	an association of timings related to connection steps
	"HostConnection"	time until connection to host is established
	"HTTPRedirect"	time spent on all redirection steps, if any
	"NameLookup"	time until DNS lookup completed
	"PreTransfer"	time to complete all steps prior to data transfer initiation
	"SSLHandshake"	time until SSL handshake completed
	"TransactionTotal"	total time for the complete request
	"TransferInitiation"	time until the first byte of data is received

URLResponseTime[url] is equivalent to URLResponseTime[url,"TransactionTotal"].
URLResponseTime takes the following option:
TimeConstraint 60 time to wait for URL to respond
Option settings t are interpreted as t seconds. Settings involving Quantity can also be used.

Examples

open allclose all

Basic Examples (1)Summary of the most common use cases

Find how long it takes to receive a byte from www.wolfram.com:

In[1]:=1

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-zq3q5f

Out[1]=1

Scope (6)Survey of the scope of standard use cases

DNS lookup time:

In[1]:=1

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-djnpt6

Out[1]=1

Find the time elapsed to make a connection:

In[1]:=1

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-bwrmhj

Out[1]=1

Find the time to complete the SSL handshake:

In[1]:=1

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-b4yj53

Out[1]=1

Elapsed time from start until the first byte is received:

In[1]:=1

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-4rfi7

Out[1]=1

Total time to complete the request:

In[2]:=2

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-x9pfk

Out[2]=2

Find all elapsed times:

In[1]:=1

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-jg644o

Out[1]=1

Request only times related to connecting to the host:

In[2]:=2

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-ngayrs

Out[2]=2

URLResponseTime supports IPAddress objects:

In[1]:=1

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-otfz2w

Out[1]=1

In[2]:=2

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-wbnjnf

Out[2]=2

Options (1)Common values & functionality for each option

TimeConstraint (1)

In[1]:=1

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-ffam5g

Out[1]=1

Properties & Relations (2)Properties of the function, and connections to other functions

"TransactionTotal" is the default property:

In[1]:=1

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-8ky3tl

Out[1]=1

In[2]:=2

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-6cnc2m

Out[2]=2

URLResponseTime[host] will report the time to open a connection to the web server:

In[1]:=1

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-5vt5wn

Out[1]=1

PingTime gives the time to ping the host without opening any connection:

In[2]:=2

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-coo4p0

Out[2]=2

When both are available, PingTime will generally be faster:

In[3]:=3

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https://wolfram.com/xid/0nx69kim4cwf6kg2a-9quqaz

Out[3]=3

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