Domain report: mendeley.com

Registration

info

.com generic · SafeNames Ltd. · expires 2027-05-29

TLD: .com (generic)
ICANN policies apply: yes
Registrar: SafeNames Ltd.
Registered: 29 May 2007
Last changed: 29 May 2026
Expires: 29 May 2027
Status: client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers: ns-1131.awsdns-13.org, ns-1808.awsdns-34.co.uk, ns-227.awsdns-28.com, ns-993.awsdns-60.net
RDAP server: https://rdap.verisign.com/com/v1/

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 2027-05-29 #3

The registration is valid until 2027-05-29 (219 days).
✓ Transfer locked #4

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

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

info

ns-1131.awsdns-13.org, ns-1808.awsdns-34.co.uk, ns-227.awsdns-28.com, ns-993.awsdns-60.net

Parent zone: com
Delegation from: a.gtld-servers.net (192.5.6.30)
NS at the parent: ns-1131.awsdns-13.org, ns-1808.awsdns-34.co.uk, ns-227.awsdns-28.com, ns-993.awsdns-60.net
NS in the zone: ns-1131.awsdns-13.org, ns-1808.awsdns-34.co.uk, ns-227.awsdns-28.com, ns-993.awsdns-60.net

Nameserver	Addresses	Network (AS)	Glue
ns-1131.awsdns-13.org	205.251.196.107 2600:9000:5304:6b00::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-
ns-1808.awsdns-34.co.uk	205.251.199.16 2600:9000:5307:1000::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-
ns-227.awsdns-28.com	205.251.192.227 2600:9000:5300:e300::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	205.251.192.227 2600:9000:5300:e300::1
ns-993.awsdns-60.net	205.251.195.225 2600:9000:5303:e100::1	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-

✓ 4 nameservers #6

Delegated to ns-1131.awsdns-13.org, ns-1808.awsdns-34.co.uk, ns-227.awsdns-28.com, ns-993.awsdns-60.net.
✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
✓ Nameserver names under 4 TLDs #12

Nameserver names use the TLDs .com, .net, .org, .uk.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

pass

8 of 8 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns-1131.awsdns-13.org 205.251.196.107	NOERROR, 3 ms, authoritative	no	yes / yes	refused	-
ns-1131.awsdns-13.org 2600:9000:5304:6b00::1	NOERROR, 4 ms, authoritative	no	yes / yes	refused	-
ns-1808.awsdns-34.co.uk 205.251.199.16	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-1808.awsdns-34.co.uk 2600:9000:5307:1000::1	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-227.awsdns-28.com 205.251.192.227	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns-227.awsdns-28.com 2600:9000:5300:e300::1	NOERROR, 13 ms, authoritative	no	yes / yes	refused	-
ns-993.awsdns-60.net 205.251.195.225	NOERROR, 3 ms, authoritative	no	yes / yes	refused	-
ns-993.awsdns-60.net 2600:9000:5303:e100::1	NOERROR, 4 ms, authoritative	no	yes / yes	refused	-

✓ All respond #14

All 8 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.
✓ No version disclosed #17

The nameservers don't reveal their software version.
✓ 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.

warn

serial 2011120801 · primary ns-227.awsdns-28.com

✓ Serial 2011120801 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

negative caching TTL (minimum) 1m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 2h, retry 1m, expire 14d, negative TTL 1m.

#23
✓ Primary is a public nameserver #24

The primary nameserver ns-227.awsdns-28.com is one of the listed nameservers.
✓ Contact sysadmin@mendeley.com #25

The SOA RNAME sysadmin.mendeley.com means sysadmin@mendeley.com.
✓ Date-based serial #26

The serial 2011120801 follows the YYYYMMDDnn convention (2011-12-08).

warn

Not signed

warn

12 records at the apex

Type	Value	TTL
SOA	ns-227.awsdns-28.com. sysadmin.mendeley.com. 2011120801 7200 60 1209600 60	120
NS	ns-1131.awsdns-13.org.	172800
NS	ns-1808.awsdns-34.co.uk.	172800
NS	ns-227.awsdns-28.com.	172800
NS	ns-993.awsdns-60.net.	172800
A	143.204.181.125	60
A	143.204.181.20	60
A	143.204.181.23	60
A	143.204.181.46	60
MX	10 mendeley-com.mail.protection.outlook.com.	300
TXT	"_globalsign-domain-verification=p5SBnEaQpl3kw8OhMXMZmIFP9N6MDq2uIIk3aVeu8-"	300
TXT	"v=spf1 a a:mailgate.mendeley.com include:spf.protection.outlook.com include:amazonses.com include:rnmk.com include:spf.mandrillapp.com ip4:176.34.138.16 -all "	300