<s>
Speedtest.net,	O
also	O
known	O
as	O
Speedtest	B-Application
by	I-Application
Ookla	I-Application
,	O
is	O
a	O
web	O
service	O
that	O
provides	O
free	O
analysis	O
of	O
Internet	O
access	O
performance	O
metrics	O
,	O
such	O
as	O
connection	O
data	O
rate	O
and	O
latency	O
.	O
</s>
<s>
It	O
is	O
the	O
flagship	O
product	O
of	O
Ookla	B-Application
,	O
a	O
web	O
testing	O
and	O
network	O
diagnostics	O
company	O
founded	O
in	O
2006	O
,	O
and	O
based	O
in	O
Seattle	O
,	O
Washington	O
,	O
United	O
States	O
.	O
</s>
<s>
Each	O
test	O
measures	O
the	O
data	O
rate	O
for	O
the	O
download	B-Application
direction	O
,	O
i.e.	O
</s>
<s>
from	O
the	O
server	B-Application
to	O
the	O
user	O
computer	O
,	O
and	O
the	O
upload	B-Application
data	O
rate	O
,	O
i.e.	O
</s>
<s>
from	O
the	O
user	O
's	O
computer	O
to	O
the	O
server	B-Application
.	O
</s>
<s>
The	O
tests	O
are	O
performed	O
within	O
the	O
user	O
's	O
web	B-Application
browser	I-Application
or	O
within	O
apps	B-Application
.	O
</s>
<s>
Tests	O
were	O
previously	O
performed	O
using	O
the	O
Hypertext	B-Protocol
Transfer	I-Protocol
Protocol	I-Protocol
(	O
HTTP	B-Protocol
)	O
at	O
Layer	O
7	O
of	O
the	O
OSI	O
model	O
.	O
</s>
<s>
To	O
further	O
improve	O
accuracy	O
,	O
Speedtest.net	B-Application
now	O
performs	O
tests	O
via	O
direct	O
Transmission	B-Protocol
Control	I-Protocol
Protocol	I-Protocol
(	O
TCP	O
)	O
sockets	O
and	O
uses	O
a	O
custom	O
protocol	O
for	O
communication	O
between	O
servers	O
and	O
clients	O
.	O
</s>
<s>
The	O
owner	O
and	O
operator	O
of	O
Speedtest.net,	O
Ookla	B-Application
,	O
was	O
established	O
in	O
2006	O
by	O
partners	O
Mike	O
Apgar	O
and	O
Doug	O
Suttles	O
.	O
</s>
<s>
Suttles	O
suggested	O
the	O
name	O
Ookla	B-Application
because	O
he	O
already	O
owned	O
the	O
Ookla.com	O
domain	O
name	O
in	O
honor	O
of	O
his	O
pet	O
cat	O
,	O
who	O
was	O
in	O
turn	O
named	O
for	O
a	O
character	O
on	O
the	O
TV	O
series	O
Thundarr	O
the	O
Barbarian	O
.	O
</s>
<s>
The	O
domain	O
speedtest.net	B-Application
has	O
been	O
used	O
to	O
host	O
a	O
speed	O
test	O
since	O
2000	O
,	O
speedtest.net	B-Application
only	O
became	O
known	O
to	O
the	O
general	O
public	O
after	O
the	O
acquisition	O
by	O
Ookla	B-Application
in	O
2006	O
.	O
</s>
<s>
As	O
of	O
2011	O
,	O
Ookla	B-Application
claimed	O
80%	O
market	O
share	O
and	O
was	O
one	O
of	O
the	O
top	O
1000	O
most	O
popular	O
websites	O
.	O
</s>
<s>
At	O
the	O
time	O
,	O
Ookla	B-Application
derived	O
its	O
revenue	O
primarily	O
from	O
fees	O
paid	O
by	O
companies	O
to	O
license	O
custom	O
speed	O
test	O
and	O
proprietary	O
testing	O
software	O
.	O
</s>
<s>
Clients	O
reportedly	O
included	O
media	O
companies	O
like	O
CNN	B-Architecture
and	O
Disney	O
,	O
and	O
telecommunications	O
providers	O
like	O
AT&T	O
,	O
Verizon	O
,	O
and	O
CenturyLink	B-Application
.	O
</s>
<s>
Ookla	B-Application
was	O
acquired	O
by	O
Ziff	O
Davis	O
in	O
2014	O
.	O
</s>
<s>
Speedtest.net	B-Application
started	O
as	O
a	O
Flash	O
based	O
broadband	B-General_Concept
speed	I-General_Concept
test	O
service	O
.	O
</s>
<s>
Ookla	B-Application
took	O
years	O
to	O
port	O
the	O
speed	O
test	O
from	O
Flash	O
to	O
HTML5	B-Application
.	O
</s>
<s>
The	O
new	O
HTML5	B-Application
based	O
speed	O
test	O
went	O
out	O
of	O
beta	O
on	O
January	O
9	O
,	O
2018	O
.	O
</s>
<s>
In	O
2016	O
,	O
Speedtest	B-Application
began	O
releasing	O
market	O
reports	O
for	O
different	O
countries	O
and	O
cities	O
,	O
providing	O
raw	O
statistics	O
regarding	O
download	B-Application
and	O
upload	B-Application
speeds	O
for	O
the	O
past	O
year	O
for	O
ISPs	O
and	O
mobile	O
carriers	O
.	O
</s>
