<s>
NewsGuard	B-Operating_System
is	O
a	O
journalism	O
and	O
technology	O
tool	O
that	O
rates	O
the	O
credibility	O
of	O
news	O
and	O
information	O
websites	O
and	O
tracks	O
online	O
misinformation	O
.	O
</s>
<s>
It	O
operates	O
a	O
browser	B-Protocol
extension	I-Protocol
and	O
mobile	B-Application
apps	I-Application
for	O
consumers	O
as	O
well	O
as	O
services	O
for	O
businesses	O
,	O
including	O
a	O
brand	O
safety	O
tool	O
for	O
advertisers	O
and	O
services	O
for	O
search	O
engines	O
,	O
social	O
media	O
apps	O
,	O
cybersecurity	O
firms	O
,	O
and	O
government	O
agencies	O
.	O
</s>
<s>
NewsGuard	B-Operating_System
's	O
trust	O
ratings	O
for	O
news	O
websites	O
are	O
based	O
on	O
nine	O
criteria	O
related	O
to	O
a	O
source	O
's	O
journalistic	O
practices	O
.	O
</s>
<s>
NewsGuard	B-Operating_System
says	O
it	O
has	O
rated	O
more	O
than	O
6,000	O
news	O
sources	O
that	O
account	O
for	O
95%	O
of	O
engagement	O
with	O
news	O
in	O
the	O
United	O
States	O
,	O
United	O
Kingdom	O
,	O
France	O
,	O
Germany	O
,	O
and	O
Italy	O
.	O
</s>
<s>
NewsGuard	B-Operating_System
operates	O
a	O
consumer-facing	O
browser	B-Protocol
extension	I-Protocol
and	O
mobile	B-Application
apps	I-Application
for	O
iOS	B-Application
and	O
Android	B-Application
that	O
label	O
news	O
sources	O
with	O
a	O
red	O
or	O
green	O
icon	O
indicating	O
the	O
site	O
's	O
rating	O
and	O
enable	O
users	O
to	O
read	O
each	O
site	O
's	O
"	O
Nutrition	O
Label	O
"	O
from	O
NewsGuard	B-Operating_System
.	O
</s>
<s>
Supported	O
browsers	O
for	O
the	O
browser	B-Protocol
extension	I-Protocol
include	O
Google	B-Application
Chrome	I-Application
,	O
Microsoft	B-Application
Edge	I-Application
,	O
Firefox	B-Application
,	O
and	O
Safari	B-Application
.	O
</s>
<s>
NewsGuard	B-Operating_System
Technologies	I-Operating_System
was	O
founded	O
in	O
2018	O
by	O
Steven	O
Brill	O
and	O
L	O
.	O
Gordon	O
Crovitz	O
,	O
who	O
serve	O
as	O
co-CEOs	O
.	O
</s>
<s>
The	O
NewsGuard	B-Operating_System
extension	O
is	O
installed	O
in	O
browsers	O
and	O
warns	O
users	O
when	O
they	O
view	O
content	O
from	O
what	O
it	O
considers	O
fake	O
news	O
websites	O
.	O
</s>
<s>
Journalists	O
employed	O
by	O
NewsGuard	B-Operating_System
Technologies	I-Operating_System
score	O
news	O
sites	O
on	O
their	O
reliability	O
and	O
general	O
trustworthiness	O
.	O
</s>
<s>
NewsGuard	B-Operating_System
determines	O
a	O
website	O
's	O
overall	O
credibility	O
score	O
based	O
on	O
a	O
number	O
of	O
criteria	O
.	O
</s>
<s>
Brill	O
positions	O
the	O
extension	O
as	O
an	O
alternative	O
to	O
government	O
regulation	O
and	O
automated	O
algorithms	O
,	O
such	O
as	O
those	O
used	O
by	O
Facebook	B-Application
.	I-Application
</s>
<s>
For	O
revenue	O
,	O
NewsGuard	B-Operating_System
Technologies	I-Operating_System
licenses	O
their	O
ratings	O
.	O
</s>
<s>
In	O
January	O
2019	O
,	O
the	O
extension	O
was	O
integrated	O
into	O
the	O
mobile	O
version	O
of	O
Microsoft	B-Application
Edge	I-Application
,	O
though	O
users	O
must	O
enable	O
it	O
.	O
</s>
<s>
The	O
decision	O
to	O
list	O
MailOnline	O
as	O
unreliable	O
was	O
reversed	O
,	O
and	O
NewsGuard	B-Operating_System
admitted	O
they	O
were	O
wrong	O
on	O
some	O
counts	O
.	O
</s>
<s>
NewsGuard	B-Operating_System
has	O
been	O
criticized	O
by	O
Breitbart	O
News	O
as	O
"	O
the	O
establishment	O
media	O
's	O
latest	O
effort	O
to	O
blacklist	O
alternative	O
media	O
sites	O
"	O
.	O
</s>
<s>
NewsGuard	B-Operating_System
attempts	O
to	O
work	O
with	O
sites	O
they	O
label	O
as	O
unreliable	O
to	O
advise	O
them	O
on	O
how	O
to	O
come	O
into	O
compliance	O
with	O
their	O
criteria	O
.	O
</s>
<s>
NewsGuard	B-Operating_System
expanded	O
its	O
coverage	O
to	O
news	O
in	O
European	O
languages	O
such	O
as	O
French	O
and	O
German	O
ahead	O
of	O
the	O
2019	O
European	O
Parliament	O
election	O
.	O
</s>
<s>
In	O
April	O
2019	O
,	O
the	O
co-founders	O
of	O
NewsGuard	B-Operating_System
announced	O
that	O
they	O
had	O
entered	O
talks	O
with	O
British	O
internet	O
service	O
providers	O
to	O
incorporate	O
their	O
credibility	O
scoring	O
system	O
into	O
consumer	O
internet	O
packages	O
.	O
</s>
<s>
Under	O
the	O
plans	O
,	O
a	O
user	O
would	O
see	O
a	O
warning	O
message	O
before	O
visiting	O
a	O
misleading	O
site	O
without	O
needing	O
to	O
have	O
the	O
NewsGuard	B-Operating_System
extension	O
installed	O
.	O
</s>
<s>
In	O
January	O
2020	O
,	O
NewsGuard	B-Operating_System
began	O
notifying	O
users	O
that	O
it	O
would	O
become	O
a	O
paid	O
,	O
member-supported	O
browser	B-Protocol
extension	I-Protocol
in	O
early	O
2020	O
,	O
while	O
remaining	O
free	O
for	O
libraries	O
and	O
schools	O
.	O
</s>
<s>
They	O
plan	O
to	O
roll	O
out	O
new	O
premium	O
features	O
,	O
including	O
a	O
reliability	O
score	O
,	O
and	O
offer	O
new	O
mobile	B-Application
apps	I-Application
for	O
Android	B-Application
and	O
iOS	B-Application
.	O
</s>
<s>
As	O
of	O
January	O
2021	O
,	O
NewsGuard	B-Operating_System
says	O
it	O
has	O
rated	O
for	O
more	O
than	O
6,000	O
news	O
sites	O
that	O
account	O
for	O
95%	O
of	O
online	O
engagement	O
with	O
news	O
in	O
the	O
U.S.	O
,	O
the	O
U.K.	O
,	O
France	O
,	O
Germany	O
and	O
Italy	O
.	O
</s>
