<s>
Lynx	B-Application
is	O
a	O
customizable	O
text-based	B-Protocol
web	I-Protocol
browser	I-Protocol
for	O
use	O
on	O
cursor-addressable	O
character	O
cell	O
terminals	B-General_Concept
.	O
</s>
<s>
Lynx	B-Application
was	O
a	O
product	O
of	O
the	O
Distributed	O
Computing	O
Group	O
within	O
Academic	O
Computing	O
Services	O
of	O
the	O
University	O
of	O
Kansas	O
,	O
and	O
was	O
initially	O
developed	O
in	O
1992	O
by	O
a	O
team	O
of	O
students	O
and	O
staff	O
at	O
the	O
university	O
(	O
Lou	O
Montulli	O
,	O
Michael	O
Grobe	O
and	O
Charles	O
Rezac	O
)	O
as	O
a	O
hypertext	O
browser	O
used	O
solely	O
to	O
distribute	O
campus	O
information	O
as	O
part	O
of	O
a	O
Campus-Wide	O
Information	O
Server	O
and	O
for	O
browsing	O
the	O
Gopher	B-Protocol
space	I-Protocol
.	O
</s>
<s>
Beta	O
availability	O
was	O
announced	O
to	O
Usenet	B-Application
on	O
22	O
July	O
1992	O
.	O
</s>
<s>
the	O
support	O
of	O
communication	O
protocols	O
in	O
Lynx	B-Application
is	O
implemented	O
using	O
a	O
version	O
of	O
libwww	B-Protocol
,	O
forked	B-Application
from	O
the	O
library	O
's	O
code	O
base	O
in	O
1996	O
.	O
</s>
<s>
The	O
supported	O
protocols	O
include	O
Gopher	B-Protocol
,	O
HTTP	B-Protocol
,	O
HTTPS	B-Protocol
,	O
FTP	B-Protocol
,	O
NNTP	B-Protocol
and	O
WAIS	B-Protocol
.	O
</s>
<s>
Support	O
for	O
NNTP	B-Protocol
was	O
added	O
to	O
libwww	B-Protocol
from	O
ongoing	O
Lynx	B-Application
development	O
in	O
1994	O
.	O
</s>
<s>
Support	O
for	O
HTTPS	B-Protocol
was	O
added	O
to	O
Lynx	B-Application
's	O
fork	B-Application
of	O
libwww	B-Protocol
later	O
,	O
initially	O
as	O
patches	O
due	O
to	O
concerns	O
about	O
encryption	O
.	O
</s>
<s>
Garrett	O
Blythe	O
created	O
DosLynx	B-Application
in	O
April	O
1994	O
and	O
later	O
joined	O
the	O
Lynx	B-Application
effort	O
as	O
well	O
.	O
</s>
<s>
Foteos	O
Macrides	O
ported	O
much	O
of	O
Lynx	B-Application
to	O
VMS	B-Operating_System
and	O
maintained	O
it	O
for	O
a	O
time	O
.	O
</s>
<s>
In	O
1995	O
,	O
Lynx	B-Application
was	O
released	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
,	O
and	O
is	O
now	O
maintained	O
by	O
a	O
group	O
of	O
volunteers	O
led	O
by	O
Thomas	B-Application
Dickey	I-Application
.	O
</s>
<s>
Browsing	O
in	O
Lynx	B-Application
consists	O
of	O
highlighting	O
the	O
chosen	O
link	O
using	O
cursor	O
keys	O
,	O
or	O
having	O
all	O
links	O
on	O
a	O
page	O
numbered	O
and	O
entering	O
the	O
chosen	O
link	O
's	O
number	O
.	O
</s>
<s>
Current	O
versions	O
support	O
SSL	B-Protocol
and	O
many	O
HTML	B-Language
features	O
.	O
</s>
<s>
Lynx	B-Application
is	O
not	O
inherently	O
able	O
to	O
display	O
various	O
types	O
of	O
non-text	O
content	O
on	O
the	O
web	O
,	O
such	O
as	O
images	O
and	O
video	O
,	O
but	O
it	O
can	O
launch	O
external	O
programs	O
to	O
handle	O
it	O
,	O
such	O
as	O
an	O
image	O
viewer	O
or	O
a	O
video	O
player	O
.	O
</s>
<s>
Unlike	O
most	O
web	O
browsers	O
,	O
Lynx	B-Application
does	O
not	O
support	O
JavaScript	B-Language
,	O
which	O
many	O
websites	O
require	O
to	O
work	O
correctly	O
.	O
</s>
<s>
Because	O
Lynx	B-Application
does	O
not	O
support	O
graphics	O
,	O
web	B-Protocol
bugs	I-Protocol
that	O
track	O
user	O
information	O
are	O
not	O
fetched	O
,	O
meaning	O
that	O
web	O
pages	O
can	O
be	O
read	O
without	O
the	O
privacy	O
concerns	O
of	O
graphic	O
web	O
browsers	O
.	O
</s>
<s>
However	O
,	O
Lynx	B-Application
does	O
support	O
HTTP	B-Application
cookies	I-Application
,	O
which	O
can	O
also	O
be	O
used	O
to	O
track	O
user	O
information	O
.	O
</s>
<s>
Lynx	B-Application
therefore	O
supports	O
cookie	B-Application
whitelisting	O
and	O
blacklisting	O
,	O
or	O
alternatively	O
cookie	B-Application
support	O
can	O
be	O
disabled	O
permanently	O
.	O
</s>
<s>
As	O
with	O
conventional	O
browsers	O
,	O
Lynx	B-Application
also	O
supports	O
browsing	O
histories	O
and	O
page	O
caching	O
,	O
both	O
of	O
which	O
can	O
raise	O
privacy	O
concerns	O
.	O
</s>
<s>
Lynx	B-Application
accepts	O
configuration	O
options	O
from	O
either	O
command-line	O
options	O
or	O
configuration	O
files	O
.	O
</s>
<s>
The	O
template	O
configuration	O
file	O
lynx.cfg	O
lists	O
233	O
configurable	O
features	O
.	O
</s>
<s>
There	O
is	O
some	O
overlap	O
between	O
the	O
two	O
,	O
although	O
there	O
are	O
command-line	O
options	O
such	O
as	O
-restrict	O
which	O
are	O
not	O
matched	O
in	O
lynx.cfg	O
.	O
</s>
<s>
In	O
addition	O
to	O
pre-set	O
options	O
by	O
command-line	O
and	O
configuration	O
file	O
,	O
Lynx	B-Application
's	O
behavior	O
can	O
be	O
adjusted	O
at	O
runtime	O
using	O
its	O
options	O
menu	O
.	O
</s>
<s>
Lynx	B-Application
implements	O
many	O
of	O
these	O
runtime	O
optional	O
features	O
,	O
optionally	O
(	O
controlled	O
through	O
a	O
setting	O
in	O
the	O
configuration	O
file	O
)	O
allowing	O
the	O
choices	O
to	O
be	O
saved	O
to	O
a	O
separate	O
writable	O
configuration	O
file	O
.	O
</s>
<s>
The	O
reason	O
for	O
restricting	O
the	O
options	O
which	O
can	O
be	O
saved	O
originated	O
in	O
a	O
usage	O
of	O
Lynx	B-Application
which	O
was	O
more	O
common	O
in	O
the	O
mid-1990s	O
,	O
i.e.	O
,	O
using	O
Lynx	B-Application
itself	O
as	O
a	O
front-end	O
application	O
to	O
the	O
Internet	O
accessed	O
by	O
dial-in	O
connections	O
.	O
</s>
<s>
Because	O
Lynx	B-Application
is	O
a	O
text-based	B-Protocol
browser	I-Protocol
,	O
it	O
can	O
be	O
used	O
for	O
internet	O
access	O
by	O
visually	O
impaired	O
users	O
on	O
a	O
refreshable	O
braille	O
display	O
and	O
is	O
easily	O
compatible	O
with	O
text-to-speech	B-Application
software	I-Application
.	O
</s>
<s>
As	O
Lynx	B-Application
substitutes	O
images	O
,	O
frames	O
and	O
other	O
non-textual	O
content	O
with	O
the	O
text	O
from	O
alt	O
,	O
name	O
and	O
title	O
HTML	B-General_Concept
attributes	I-General_Concept
and	O
allows	O
hiding	O
the	O
user	B-Application
interface	I-Application
elements	O
,	O
the	O
browser	O
becomes	O
specifically	O
suitable	O
for	O
use	O
with	O
cost-effective	O
general	O
purpose	O
screen	O
reading	O
software	O
.	O
</s>
<s>
A	O
version	O
of	O
Lynx	B-Application
specifically	O
enhanced	O
for	O
use	O
with	O
screen	O
readers	O
on	O
Windows	B-Application
was	O
developed	O
at	O
Indian	O
Institute	O
of	O
Technology	O
Madras	O
.	O
</s>
<s>
Lynx	B-Application
is	O
also	O
useful	O
for	O
accessing	O
websites	O
from	O
a	O
remotely	O
connected	O
system	O
in	O
which	O
no	O
graphical	O
display	O
is	O
available	O
.	O
</s>
<s>
Since	O
Lynx	B-Application
will	O
take	O
keystrokes	O
from	O
a	O
text	O
file	O
,	O
it	O
is	O
still	O
very	O
useful	O
for	O
automated	O
data	O
entry	O
,	O
web	O
page	O
navigation	O
,	O
and	O
web	B-Application
scraping	I-Application
.	O
</s>
<s>
Consequently	O
,	O
Lynx	B-Application
is	O
used	O
in	O
some	O
web	O
crawlers	O
.	O
</s>
<s>
Web	O
designers	O
may	O
use	O
Lynx	B-Application
to	O
determine	O
the	O
way	O
in	O
which	O
search	O
engines	O
and	O
web	O
crawlers	O
see	O
the	O
sites	O
that	O
they	O
develop	O
.	O
</s>
<s>
Online	O
services	O
that	O
provide	O
Lynx	B-Application
's	O
view	O
of	O
a	O
given	O
web	O
page	O
are	O
available	O
.	O
</s>
<s>
Lynx	B-Application
is	O
also	O
used	O
to	O
test	O
websites	O
 '	O
performance	O
.	O
</s>
<s>
As	O
one	O
can	O
run	O
the	O
browser	O
from	O
different	O
locations	O
over	O
remote	O
access	O
technologies	O
like	O
telnet	B-Protocol
and	O
ssh	B-Protocol
,	O
one	O
can	O
use	O
Lynx	B-Application
to	O
test	O
the	O
web	O
site	O
's	O
connection	O
performance	O
from	O
different	O
geographical	O
locations	O
simultaneously	O
.	O
</s>
<s>
Lynx	B-Application
was	O
originally	O
designed	O
for	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
.	O
</s>
<s>
It	O
was	O
ported	O
to	O
VMS	B-Operating_System
soon	O
after	O
its	O
public	O
release	O
and	O
to	O
other	O
systems	O
,	O
including	O
DOS	B-Device
,	O
Microsoft	B-Application
Windows	I-Application
,	O
Classic	B-Application
Mac	I-Application
OS	I-Application
and	O
OS/2	B-Application
.	O
</s>
<s>
It	O
was	O
included	O
in	O
the	O
default	O
OpenBSD	B-Operating_System
installation	O
from	O
OpenBSD	B-Operating_System
2.3	O
(	O
May	O
1998	O
)	O
to	O
5.5(May 2014 )	O
,	O
being	O
in	O
the	O
main	O
tree	O
prior	O
to	O
July	O
2014	O
,	O
subsequently	O
being	O
made	O
available	O
through	O
the	O
ports	O
tree	O
.	O
</s>
<s>
Lynx	B-Application
can	O
also	O
be	O
found	O
in	O
the	O
repositories	B-Application
of	O
most	O
Linux	B-Application
distributions	O
,	O
as	O
well	O
as	O
in	O
the	O
Homebrew	O
and	O
Fink	B-Application
repositories	B-Application
for	O
macOS	B-Application
.	O
</s>
<s>
Ports	O
to	O
BeOS	B-Application
,	O
MINIX	B-Operating_System
,	O
QNX	B-Operating_System
,	O
AmigaOS	B-Application
and	O
OS/2	B-Application
are	O
also	O
available	O
.	O
</s>
<s>
The	O
sources	O
can	O
be	O
built	O
on	O
many	O
platforms	O
,	O
such	O
as	O
Google	B-Application
's	I-Application
Android	I-Application
operating	O
system	O
.	O
</s>
