<s>
A	O
public	B-Operating_System
recursive	I-Operating_System
name	I-Operating_System
server	I-Operating_System
(	O
also	O
called	O
public	B-Operating_System
DNS	I-Operating_System
resolver	I-Operating_System
)	O
is	O
a	O
name	B-Protocol
server	I-Protocol
service	O
that	O
networked	O
computers	O
may	O
use	O
to	O
query	O
the	O
Domain	B-Protocol
Name	I-Protocol
System	I-Protocol
(	O
DNS	B-Protocol
)	O
,	O
the	O
decentralized	O
Internet	O
naming	O
system	O
,	O
in	O
place	O
of	O
(	O
or	O
in	O
addition	O
to	O
)	O
name	B-Protocol
servers	I-Protocol
operated	O
by	O
the	O
local	O
Internet	O
service	O
provider	O
(	O
ISP	O
)	O
to	O
which	O
the	O
devices	O
are	O
connected	O
.	O
</s>
<s>
filtering	O
(	O
security	O
,	O
ad-blocking	O
,	O
porn-blocking	B-Protocol
,	O
etc	O
.	O
)	O
</s>
<s>
Public	B-Operating_System
DNS	I-Operating_System
resolver	I-Operating_System
operators	O
often	O
cite	O
increased	O
privacy	O
as	O
an	O
advantage	O
of	O
their	O
services	O
;	O
critics	O
of	O
public	O
DNS	B-Protocol
services	O
have	O
cited	O
the	O
possibility	O
of	O
mass	O
data	O
collection	O
targeted	O
at	O
the	O
public	O
resolvers	O
as	O
a	O
potential	O
risk	O
of	O
using	O
these	O
services	O
.	O
</s>
<s>
Several	O
services	O
now	O
support	O
secure	B-Protocol
DNS	I-Protocol
lookup	O
transport	O
services	O
such	O
as	O
DNS	B-Protocol
over	I-Protocol
HTTPS	I-Protocol
(	O
DoH	O
)	O
and	O
DNS	B-Protocol
over	I-Protocol
TLS	I-Protocol
(	O
DoT	O
)	O
.	O
</s>
<s>
Public	B-Operating_System
DNS	I-Operating_System
resolvers	I-Operating_System
are	O
operated	O
either	O
by	O
commercial	O
companies	O
,	O
offering	O
their	O
service	O
for	O
free	O
use	O
to	O
the	O
public	O
,	O
or	O
by	O
private	O
enthusiasts	O
to	O
help	O
spread	O
new	O
technologies	O
and	O
support	O
non-profit	O
communities	O
.	O
</s>
<s>
Providers	O
Privacy	O
policy	O
DNS	B-Protocol
over	O
UDP	O
DNSSEC	B-Protocol
DNS	B-Protocol
over	I-Protocol
TLS	I-Protocol
DNS	B-Protocol
over	I-Protocol
HTTPS	I-Protocol
DNSCrypt	O
DNS	B-Protocol
over	O
QUIC	O
Hostnames	O
IPv4	B-Protocol
addresses	O
IPv6	B-Protocol
addresses	O
Filters	O
RemarksAdGuard	O
rowspan	O
="3	O
"	O
!	O
</s>
<s>
AdGuard	O
DNS	B-Protocol
Privacy	O
Notice	O
rowspan	O
="3	O
"	O
!	O
</s>
<s>
AdGuard	O
DNS	B-Protocol
FAQ	O
:	O
What	O
is	O
DNSSEC	B-Protocol
?	O
</s>
<s>
The	O
official	O
release	O
of	O
AdGuard	O
DNS	B-Protocol
—	O
a	O
new	O
unique	O
approach	O
to	O
privacy-oriented	O
DNS	B-Protocol
rowspan	O
="3	O
"	O
!	O
</s>
<s>
Adguard	O
DNS	B-Protocol
now	O
supports	O
DNSCrypt	O
rowspan	O
="3	O
"	O
!	O
</s>
<s>
AdGuard	O
DNS-over-QUIC	O
dns.adguard.com	O
Default	O
:	O
ads	O
and	O
trackersAdGuard	O
DNS	B-Protocol
Setup	O
guide	O
dns-family.adguard.com	O
Family	O
:	O
ads	O
,	O
trackers	O
,	O
and	O
adult	O
content	O
dns-unfiltered.adguard.com	O
None	O
CleanBrowsing	B-Protocol
rowspan	O
="3	O
"	O
!	O
</s>
<s>
family-filter-dns.cleanbrowsing.org	O
Family	O
Designed	O
to	O
be	O
used	O
on	O
devices	O
of	O
kids	O
under	O
13	O
.	O
adult-filter-dns.cleanbrowsing.org	O
Adult	O
security-filter-dns.cleanbrowsing.org	O
Security	O
Cloudflare	B-Protocol
rowspan	O
=	O
"	O
4	O
"	O
!	O
</s>
<s>
one.one.one.one	O
<	O
br/	O
>1dot1dot1dot1.cloudflare-dns.com	O
None	O
dns64.cloudflare-dns.com	O
None	O
Intended	O
to	O
be	O
IPv6-only	O
.	O
</s>
<s>
See	O
NAT64	B-Protocol
and	O
DNS64	O
.	O
</s>
<s>
security.cloudflare-dns.com	O
Malware	O
,	O
Phishing	O
family.cloudflare-dns.com	O
Malware	O
,	O
Phishing	O
,	O
Adult	O
contentDyn	O
resolver1.dyndnsinternetguide.comresolver2.dyndnsinternetguide.com	O
Planned	O
shutdown	O
on	O
May	O
31	O
,	O
2023	O
.	O
</s>
<s>
Google	B-Protocol
rowspan	O
=	O
"	O
2	O
"	O
!	O
</s>
<s>
Google	B-Protocol
Public	I-Protocol
DNS	I-Protocol
:	O
Your	O
Privacy	O
rowspan	O
=	O
"	O
2	O
"	O
!	O
</s>
<s>
Google	B-Protocol
Public	I-Protocol
DNS	I-Protocol
:	O
DNS-over-HTTPS	B-Protocol
rowspan	O
=	O
"	O
2	O
"	O
!	O
</s>
<s>
dns.google	O
None	O
dns64.dns.google	O
None	O
Intended	O
for	O
networks	O
with	O
NAT64	B-Protocol
gateway.Google	O
Public	O
DNS64	O
Neustar	O
rowspan	O
=	O
"	O
6	O
"	O
!	O
</s>
<s>
64.6.64.664.6.65.6	O
2620:74:1b::1:12620:74:1c::2:2	O
None	O
Verisign	O
transferred	O
its	O
public	O
DNS	B-Protocol
to	O
Neustar	O
.	O
</s>
<s>
OpenDNS	B-Protocol
rowspan	O
="3	O
"	O
!	O
</s>
<s>
OpenDNS	B-Protocol
:	O
DNSSEC	B-Protocol
General	O
Availability	O
rowspan	O
="3	O
"	O
!	O
</s>
<s>
OpenDNS	B-Protocol
:	O
Querying	O
OpenDNS	B-Protocol
using	O
DoH	O
rowspan	O
="3	O
"	O
!	O
</s>
<s>
OpenDNS	B-Protocol
:	O
OpenDNS	B-Protocol
and	O
DNSCrypt	O
rowspan	O
="3	O
"	O
!	O
</s>
<s>
dns.opendns.com	O
Basic	O
Security	O
filtering	O
+	O
user	O
defined	O
policies	O
familyshield.opendns.com	O
FamilyShield	O
:	O
adult	O
content	O
sandbox.opendns.com	O
None	O
Sandbox	O
addresses	O
that	O
provide	O
no	O
filtering	O
.	O
</s>
<s>
OpenNIC	B-Protocol
OpenNIC	B-Protocol
:	O
Privacy	O
Policy	O
OpenNIC	B-Protocol
:	O
DNSCrypt	O
Several	O
Vary	O
Quad9	B-Protocol
rowspan	O
="3	O
"	O
!	O
</s>
<s>
Quad9	B-Protocol
:	O
Compliance	O
and	O
Applicable	O
LawQuad9	O
:	O
Data	O
and	O
Privacy	O
Policy	O
rowspan	O
="3	O
"	O
!	O
</s>
<s>
Quad9	B-Protocol
FAQ	O
:	O
Does	O
Quad9	B-Protocol
implement	O
DNSSEC	B-Protocol
?	O
</s>
<s>
Quad9	B-Protocol
FAQ	O
:	O
Does	O
Quad9	B-Protocol
support	O
DNS	B-Protocol
over	I-Protocol
TLS	I-Protocol
?	O
</s>
<s>
Quad9	B-Protocol
FAQ	O
:	O
Does	O
Quad9	B-Protocol
support	O
DNS	B-Protocol
over	I-Protocol
HTTPS	I-Protocol
(	O
DoH	O
)	O
?	O
</s>
<s>
Quad9	B-Protocol
FAQ	O
:	O
Does	O
Quad9	B-Protocol
support	O
dnscrypt	O
?	O
</s>
<s>
dns9.quad9.net	O
Phishing	O
,	O
malware	O
,	O
and	O
exploit	O
kit	O
domains	O
dns11.quad9.net	O
Phishing	O
,	O
malware	O
,	O
and	O
exploit	O
kit	O
domains	O
Passes	O
EDNS	B-Protocol
Client	I-Protocol
Subnet	I-Protocol
.	O
</s>
<s>
Quad9	B-Protocol
FAQ	O
:	O
Is	O
there	O
a	O
service	O
that	O
Quad9	B-Protocol
offers	O
that	O
does	O
not	O
have	O
the	O
blocklist	O
or	O
other	O
security	O
?	O
</s>
<s>
dns10.quad9.net	O
None	O
Yandex	O
rowspan	O
="3	O
"	O
!	O
</s>
<s>
Terms	O
of	O
use	O
of	O
the	O
Yandex.DNS	O
service	O
rowspan	O
="3	O
"	O
!	O
</s>
