Domain report: printfriendly.com

Registration

info

.com generic · Cloudflare, Inc. · expires 2027-06-21

Found

TLD: .com (generic)
ICANN policies apply: yes
Registrar: Cloudflare, Inc.
Registered: 21 June 2006
Last changed: 29 May 2026
Expires: 21 June 2027
Status: client transfer prohibited
Registry nameservers: guss.ns.cloudflare.com, zoe.ns.cloudflare.com
RDAP server: https://rdap.verisign.com/com/v1/

Checks

i

.com is a generic TLD (gTLD)

Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.

#1
✓ TLD delegated and signed #2

.com is delegated in the root zone and DNSSEC-signed.
✓ Expires on 2027-06-21 #3

The registration is valid until 2027-06-21 (241 days).
✓ Transfer locked #4

Registry status: client transfer prohibited.
✓ Registry and delegation match #5

The nameservers registered at the registry are the ones published in DNS.

Delegation

info

guss.ns.cloudflare.com, zoe.ns.cloudflare.com

Found

Parent zone: com
Delegation from: a.gtld-servers.net (192.5.6.30)
NS at the parent: guss.ns.cloudflare.com, zoe.ns.cloudflare.com
NS in the zone: guss.ns.cloudflare.com, zoe.ns.cloudflare.com

Nameserver	Addresses	Network (AS)	Glue
guss.ns.cloudflare.com	173.245.59.172 108.162.193.172 172.64.33.172 2606:4700:58::adf5:3bac 2803:f800:50::6ca2:c1ac 2a06:98c1:50::ac40:21ac	AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US	108.162.193.172 172.64.33.172 173.245.59.172 2606:4700:58::adf5:3bac 2803:f800:50::6ca2:c1ac 2a06:98c1:50::ac40:21ac
zoe.ns.cloudflare.com	173.245.58.149 108.162.192.149 172.64.32.149 2606:4700:50::adf5:3a95 2803:f800:50::6ca2:c095 2a06:98c1:50::ac40:2095	AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US	108.162.192.149 172.64.32.149 173.245.58.149 2606:4700:50::adf5:3a95 2803:f800:50::6ca2:c095 2a06:98c1:50::ac40:2095

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: guss.ns.cloudflare.com, zoe.ns.cloudflare.com.

#6
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ No glue needed #8

All nameservers are outside the zone, so no glue records are needed.
✓ All names resolve #9

Every nameserver name has an address and is not an alias.
✓ Nameservers in different networks #10

The nameservers are spread over 6 IPv4 /24s and 4 IPv6 /48s.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
i

All nameserver names under .com

All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.

#12
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
guss.ns.cloudflare.com 173.245.59.172	NOERROR, 5 ms, authoritative	no	yes / yes	refused	2026.10.2
guss.ns.cloudflare.com 108.162.193.172	NOERROR, 5 ms, authoritative	no	yes / yes	refused	2026.10.2
guss.ns.cloudflare.com 172.64.33.172	NOERROR, 6 ms, authoritative	no	yes / yes	refused	2026.10.2
guss.ns.cloudflare.com 2606:4700:58::adf5:3bac	NOERROR, 5 ms, authoritative	no	yes / yes	refused	2026.10.2
guss.ns.cloudflare.com 2803:f800:50::6ca2:c1ac	NOERROR, 6 ms, authoritative	no	yes / yes	refused	2026.10.2
guss.ns.cloudflare.com 2a06:98c1:50::ac40:21ac	NOERROR, 6 ms, authoritative	no	yes / yes	refused	2026.10.2
zoe.ns.cloudflare.com 173.245.58.149	NOERROR, 5 ms, authoritative	no	yes / yes	refused	2026.10.2
zoe.ns.cloudflare.com 108.162.192.149	NOERROR, 5 ms, authoritative	no	yes / yes	refused	2026.10.2
zoe.ns.cloudflare.com 172.64.32.149	NOERROR, 4 ms, authoritative	no	yes / yes	refused	2026.10.2
zoe.ns.cloudflare.com 2606:4700:50::adf5:3a95	NOERROR, 5 ms, authoritative	no	yes / yes	refused	2026.10.2
zoe.ns.cloudflare.com 2803:f800:50::6ca2:c095	NOERROR, 5 ms, authoritative	no	yes / yes	refused	2026.10.2
zoe.ns.cloudflare.com 2a06:98c1:50::ac40:2095	NOERROR, 5 ms, authoritative	no	yes / yes	refused	2026.10.2

Checks

✓ All respond #14

All 12 nameserver addresses answered.
✓ All authoritative #15

Every responding nameserver answers authoritatively for the zone.
✓ No recursion #16

The nameservers do not answer recursive queries for other domains.
!

Software version disclosed

These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: guss.ns.cloudflare.com: "2026.10.2"; zoe.ns.cloudflare.com: "2026.10.2". Hide or replace the version string.

#17
✓ Zone transfers refused #18

No nameserver allows a zone transfer to the public.
✓ TCP supported #19

All nameservers answer over TCP.
✓ EDNS supported #20

All nameservers support EDNS(0).
✓ Public addresses #21

All nameserver addresses are publicly routable.

SOA

pass

serial 2418117860 · primary guss.ns.cloudflare.com

Found

Primary (MNAME): guss.ns.cloudflare.com
Contact (RNAME): dns.cloudflare.com
Serial: 2418117860
Refresh / retry: 10000 s / 2400 s
Expire: 604800 s
Negative TTL: 1800 s

Serial per nameserver

Nameserver	Serial
guss.ns.cloudflare.com (173.245.59.172)	2418117860
guss.ns.cloudflare.com (108.162.193.172)	2418117860
guss.ns.cloudflare.com (172.64.33.172)	2418117860
guss.ns.cloudflare.com (2606:4700:58::adf5:3bac)	2418117860
guss.ns.cloudflare.com (2803:f800:50::6ca2:c1ac)	2418117860
guss.ns.cloudflare.com (2a06:98c1:50::ac40:21ac)	2418117860
zoe.ns.cloudflare.com (173.245.58.149)	2418117860
zoe.ns.cloudflare.com (108.162.192.149)	2418117860
zoe.ns.cloudflare.com (172.64.32.149)	2418117860
zoe.ns.cloudflare.com (2606:4700:50::adf5:3a95)	2418117860
zoe.ns.cloudflare.com (2803:f800:50::6ca2:c095)	2418117860
zoe.ns.cloudflare.com (2a06:98c1:50::ac40:2095)	2418117860

Checks

✓ Serial 2418117860 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
✓ Primary is a public nameserver #24

The primary nameserver guss.ns.cloudflare.com is one of the listed nameservers.
✓ Contact dns@cloudflare.com #25

The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
✓ Timestamp serial #26

The serial 2418117860 is a Unix timestamp (2046-08-17 11:24 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC
Signatures valid until: 23 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
2371	ECDSAP256SHA256 (13)	SHA256 19096E58F1D9F243…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
2371	KSK (257)	ECDSAP256SHA256 (13)
34505	ZSK (256)	ECDSAP256SHA256 (13)

Checks

✓ Signed and validated #27

The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
✓ DS matches a key #28

The DS record at the parent matches a key in the zone: key tag 2371 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Short-lived signatures (online signing) #30

Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-21 09:21 UTC and expires at 2026-10-23 11:21 UTC.
i

NSEC

The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.

#31

Records

pass

39 records at the apex

Found

Read from: 173.245.59.172:53

Type	Value	TTL
SOA	guss.ns.cloudflare.com. dns.cloudflare.com. 2418117860 10000 2400 604800 1800	1800
NS	guss.ns.cloudflare.com.	86400
NS	zoe.ns.cloudflare.com.	86400
A	172.67.73.115	300
A	104.26.8.127	300
A	104.26.9.127	300
AAAA	2606:4700:20::681a:97f	300
AAAA	2606:4700:20::681a:87f	300
AAAA	2606:4700:20::ac43:4973	300
MX	10 aspmx.l.google.com.	300
MX	20 alt1.aspmx.l.google.com.	300
MX	30 alt2.aspmx.l.google.com.	300
MX	40 aspmx2.googlemail.com.	300
MX	50 aspmx3.googlemail.com.	300
TXT	"MS=ms70847658"	300
TXT	"google-site-verification=y7i0HDcVlfqqtnxtW2kC4HRkKXmisZek6BQgsPJVVRU"	300
TXT	"openai-domain-verification=dv-bEA1aJDN4enhU940izXdFPlX"	300
TXT	"postman-domain-verification=692635696f64ce3fe2282c3c9a662ee095133275cf0f783ad80d5c3360f3dd92da1d9e58d50d0e93cc93e9aefd44822938168bb64eb0f4c6bc6eee5788cf9c11"	300
TXT	"stripe-verification=9b3288435a54a4bcf0ab9d0eaee7439ba4b7d66f6a369873438c891d847540bd"	300
TXT	"v=MCPv1; k=ed25519; p=ILO+NgVLOlZGzKG1OZ/wKrPK3XIMxUv6jMMaq0w+eQs="	300
TXT	"v=spf1 include:_spf.google.com -all"	300
CAA	0 issue "amazon.com"	300
CAA	0 issue "amazonaws.com"	300
CAA	0 issue "amazontrust.com"	300
CAA	0 issue "awstrust.com"	300
CAA	0 issue "comodoca.com"	300
CAA	0 issue "digicert.com; cansignhttpexchanges=yes"	300
CAA	0 issue "letsencrypt.org"	300
CAA	0 issue "pki.goog; cansignhttpexchanges=yes"	300
CAA	0 issue "ssl.com"	300
CAA	0 issuewild "amazon.com"	300
CAA	0 issuewild "amazonaws.com"	300
CAA	0 issuewild "amazontrust.com"	300
CAA	0 issuewild "awstrust.com"	300
CAA	0 issuewild "comodoca.com"	300
CAA	0 issuewild "digicert.com; cansignhttpexchanges=yes"	300
CAA	0 issuewild "letsencrypt.org"	300
CAA	0 issuewild "pki.goog; cansignhttpexchanges=yes"	300
CAA	0 issuewild "ssl.com"	300

Checks

✓ TTLs within range #32

TTLs: A 5m, AAAA 5m, MX 5m, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
✓ No wildcard #34

Names that don't exist return NXDOMAIN.
✓ CAA restricts issuance #35

Certificates may be issued by: amazon.com, amazonaws.com, amazontrust.com, awstrust.com, comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com.