philly.com

Checked 22 October 2026, 10:13 UTC · via 8.8.8.8
!Passed with warnings
25 passed 3 warnings 0 failed 3 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2030-08-09

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
10 August 1998
Last changed
9 August 2025
Expires
9 August 2030
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-1171.awsdns-18.org, ns-18.awsdns-02.com, ns-865.awsdns-44.net
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 2030-08-09 #3
    The registration is valid until 2030-08-09 (1386 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

ns-1171.awsdns-18.org, ns-18.awsdns-02.com, ns-865.awsdns-44.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1171.awsdns-18.org, ns-18.awsdns-02.com, ns-865.awsdns-44.net
NS in the zone
ns-1171.awsdns-18.org, ns-18.awsdns-02.com, ns-2009.awsdns-59.co.uk, ns-865.awsdns-44.net
NameserverAddressesNetwork (AS)Glue
ns-1171.awsdns-18.org205.251.196.147 2600:9000:5304:9300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-18.awsdns-02.com205.251.192.18 2600:9000:5300:1200::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.18 2600:9000:5300:1200::1
ns-2009.awsdns-59.co.uk (zone only)205.251.199.217 2600:9000:5307:d900::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-865.awsdns-44.net205.251.195.97 2600:9000:5303:6100::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns-1171.awsdns-18.org, ns-18.awsdns-02.com, ns-865.awsdns-44.net.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only in the zone: ns-2009.awsdns-59.co.uk. ns-1171.awsdns-18.org, ns-18.awsdns-02.com, ns-2009.awsdns-59.co.uk, ns-865.awsdns-44.net report NS ns-1171.awsdns-18.org ns-18.awsdns-02.com ns-2009.awsdns-59.co.uk ns-865.awsdns-44.net.
    #7
  • ✓ 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 3 TLDs #12
    Nameserver names use the TLDs .com, .net, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1171.awsdns-18.org 205.251.196.147NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1171.awsdns-18.org 2600:9000:5304:9300::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-18.awsdns-02.com 205.251.192.18NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-18.awsdns-02.com 2600:9000:5300:1200::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-2009.awsdns-59.co.uk 205.251.199.217NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-2009.awsdns-59.co.uk 2600:9000:5307:d900::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-865.awsdns-44.net 205.251.195.97NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-865.awsdns-44.net 2600:9000:5303:6100::1NOERROR, 5 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ 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.

SOA

pass

serial 1 · primary ns-1171.awsdns-18.org

Found

Primary (MNAME)
ns-1171.awsdns-18.org
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1171.awsdns-18.org (205.251.196.147)1
ns-1171.awsdns-18.org (2600:9000:5304:9300::1)1
ns-18.awsdns-02.com (205.251.192.18)1
ns-18.awsdns-02.com (2600:9000:5300:1200::1)1
ns-2009.awsdns-59.co.uk (205.251.199.217)1
ns-2009.awsdns-59.co.uk (2600:9000:5307:d900::1)1
ns-865.awsdns-44.net (205.251.195.97)1
ns-865.awsdns-44.net (2600:9000:5303:6100::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-1171.awsdns-18.org is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

warn

18 records at the apex

Found

Read from
205.251.196.147:53
TypeValueTTL
SOAns-1171.awsdns-18.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 864003600
NSns-1171.awsdns-18.org.172800
NSns-18.awsdns-02.com.172800
NSns-2009.awsdns-59.co.uk.172800
NSns-865.awsdns-44.net.172800
A35.71.148.6260
A52.223.20.21460
MX10 aspmx.l.google.com.3600
MX20 alt1.aspmx.l.google.com.3600
MX30 alt2.aspmx.l.google.com.3600
MX40 alt3.aspmx.l.google.com.3600
TXT"MS=ms50503649"60
TXT"adobe-idp-site-verification=7d0f6864c606f0fbb47cc6e0221ce184c6fc8e695d2d8ec3051ceecf21fdbbca"60
TXT"facebook-domain-verification=kltje477h0s3g95gkp0my9pgbeors7"60
TXT"google-site-verification=HL1ALA9H13xsTF4VzXnLKP0AvCgkh7zfEvUJS6AD9Ic"60
TXT"google-site-verification=iGaxCeN5iv1n3C0e_zFrIjf84lmWqdCxArh2XZVNtho"60
TXT"spf2.0/pra a:sopgw.phillynews.com a:exmail4.phillynews.com, ip4:161.188.204.0/24 ip4:174.132.249.186/32 ip4:174.132.249.187/32 ip4:174.132.249.188/32 ip4:174.132.249.189/32 include:clickability.com include:listrak.com ~all"60
TXT"v=spf1 ip4:161.188.204.0/24 ip4:161.188.211.0/24 ip4:174.132.249.0/24 ip4:64.18.0.0/20 include:_spf.google.com include:servers.mcsv.net include:spf.mandrillapp.com include:amazonses.com include:_spf.dmplocal.com include:mail.zendesk.com -all"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change.
    #32
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35