iflying.com

Checked 22 October 2026, 09:15 UTC · via 8.8.8.8
!Passed with warnings
24 passed 3 warnings 0 failed 4 info

Registration

info

.com generic · eName Technology Co., Ltd. · expires 2029-03-20

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
eName Technology Co., Ltd.
Registered
20 March 2004
Last changed
20 November 2023
Expires
20 March 2029
Status
client delete prohibited, client transfer prohibited
Registry nameservers
f1g1ns1.dnspod.net, f1g1ns2.dnspod.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 2029-03-20 #3
    The registration is valid until 2029-03-20 (880 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

f1g1ns1.dnspod.net, f1g1ns2.dnspod.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
f1g1ns1.dnspod.net, f1g1ns2.dnspod.net
NS in the zone
f1g1ns1.dnspod.net, f1g1ns2.dnspod.net
NameserverAddressesNetwork (AS)Glue
f1g1ns1.dnspod.net111.13.13.35 125.94.59.235 163.177.5.35 1.14.119.35 117.135.128.235 1.12.0.4 2402:4e00:1470:2::eAS9808 CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd., CN AS4134 CHINANET-BACKBONE - No.31,Jin-rong Street, CN AS136958 UNICOM-GuangZhou-IDC - China Unicom Guangdong IP network, CN AS45090 TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited, CN AS24400 CMNET-V4shanghai-AS-AP - Shanghai Mobile Communications Co.,Ltd., CN AS132203 TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN AS45090 TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited, CN-
f1g1ns2.dnspod.net220.196.136.35 111.206.98.235 36.155.149.35 101.227.168.35 1.12.0.1 106.39.207.235 1.13.76.35 2402:4e00:111:fff::cAS140979 UNICOM-SHFT-IDC - China Unicom Shanghai FuTe IDC network, CN AS4808 CHINA169-BJ - China Unicom Beijing Province Network, CN AS56046 CMNET-Jiangsu-AP - China Mobile communications corporation, CN AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group), CN AS45090 TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited, CN AS23724 CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation, CN AS45090 TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited, CN AS45090 TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited, CN-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: f1g1ns1.dnspod.net, f1g1ns2.dnspod.net.
    #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 12 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 11 autonomous systems #11
    The nameservers are spread over: AS132203 (TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN): 1 address; AS136958 (UNICOM-GuangZhou-IDC - China Unicom Guangdong IP network, CN): 1 address; AS140979 (UNICOM-SHFT-IDC - China Unicom Shanghai FuTe IDC network, CN): 1 address; AS23724 (CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation, CN): 1 address; AS24400 (CMNET-V4shanghai-AS-AP - Shanghai Mobile Communications Co.,Ltd., CN): 1 address; AS4134 (CHINANET-BACKBONE - No.31,Jin-rong Street, CN): 1 address; AS45090 (TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited, CN): 5 addresses; AS4808 (CHINA169-BJ - China Unicom Beijing Province Network, CN): 1 address; AS4811 (CHINANET-SHANGHAI-MAN - China Telecom (Group), CN): 1 address; AS56046 (CMNET-Jiangsu-AP - China Mobile communications corporation, CN): 1 address; AS9808 (CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd., CN): 1 address.
  • i
    All nameserver names under .net
    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

15 of 15 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
f1g1ns1.dnspod.net 111.13.13.35NOERROR, 137 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns1.dnspod.net 125.94.59.235NOERROR, 217 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns1.dnspod.net 163.177.5.35NOERROR, 221 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns1.dnspod.net 1.14.119.35NOERROR, 239 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns1.dnspod.net 117.135.128.235NOERROR, 230 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns1.dnspod.net 1.12.0.4NOERROR, 4 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns1.dnspod.net 2402:4e00:1470:2::eNOERROR, 221 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns2.dnspod.net 220.196.136.35NOERROR, 199 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns2.dnspod.net 111.206.98.235NOERROR, 135 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns2.dnspod.net 36.155.149.35NOERROR, 264 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns2.dnspod.net 101.227.168.35NOERROR, 165 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns2.dnspod.net 1.12.0.1NOERROR, 4 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns2.dnspod.net 106.39.207.235NOERROR, 146 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns2.dnspod.net 1.13.76.35NOERROR, 236 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01
f1g1ns2.dnspod.net 2402:4e00:111:fff::cNOERROR, 201 ms, authoritativenoyes / yesrefusedDNSPod AUTHORITY DNS 7.3.2512.01

Checks

  • ✓ All respond #14
    All 15 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: f1g1ns1.dnspod.net: "DNSPod AUTHORITY DNS 7.3.2512.01"; f1g1ns2.dnspod.net: "DNSPod AUTHORITY DNS 7.3.2512.01". 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

warn

serial 1788309881 · primary f1g1ns1.dnspod.net

Found

Primary (MNAME)
f1g1ns1.dnspod.net
Contact (RNAME)
freednsadmin.dnspod.com
Serial
1788309881
Refresh / retry
3600 s / 180 s
Expire
1209600 s
Negative TTL
180 s

Serial per nameserver

NameserverSerial
f1g1ns1.dnspod.net (111.13.13.35)1788309881
f1g1ns1.dnspod.net (125.94.59.235)1788309881
f1g1ns1.dnspod.net (163.177.5.35)1788309881
f1g1ns1.dnspod.net (1.14.119.35)1788309881
f1g1ns1.dnspod.net (117.135.128.235)1788309881
f1g1ns1.dnspod.net (1.12.0.4)1788309881
f1g1ns1.dnspod.net (2402:4e00:1470:2::e)1788309881
f1g1ns2.dnspod.net (220.196.136.35)1788309881
f1g1ns2.dnspod.net (111.206.98.235)1788309881
f1g1ns2.dnspod.net (36.155.149.35)1788309881
f1g1ns2.dnspod.net (101.227.168.35)1788309881
f1g1ns2.dnspod.net (1.12.0.1)1788309881
f1g1ns2.dnspod.net (106.39.207.235)1788309881
f1g1ns2.dnspod.net (1.13.76.35)1788309881
f1g1ns2.dnspod.net (2402:4e00:111:fff::c)1788309881

Checks

  • ✓ Serial 1788309881 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 3m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 1h, retry 3m, expire 14d, negative TTL 3m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver f1g1ns1.dnspod.net is one of the listed nameservers.
  • ✓ Contact freednsadmin@dnspod.com #25
    The SOA RNAME freednsadmin.dnspod.com means freednsadmin@dnspod.com.
  • ✓ Timestamp serial #26
    The serial 1788309881 is a Unix timestamp (2026-09-02 00:44 UTC).

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

info

7 records at the apex

Found

Read from
111.13.13.35:53
TypeValueTTL
SOAf1g1ns1.dnspod.net. freednsadmin.dnspod.com. 1788309881 3600 180 1209600 180180
NSf1g1ns1.dnspod.net.86400
NSf1g1ns2.dnspod.net.86400
A123.60.63.22600
MX5 mxbiz1.qq.com.600
MX10 mxbiz2.qq.com.600
TXT"q3cfdn5gx6npx13sncdtcmzq284z5xkb"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 10m, 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.
  • 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