reftek.com - dns.ninja
reftek.com
| DNSSEC | โ ๏ธ Not signed | ||||||
| A | 2606:4700:3034::ac43:92f5๐บ๐ธ Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US โ In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:ae7๐บ๐ธ Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US โ In HTTPS hints | ||||||
| A | 104.21.10.231Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US โ In HTTPS hints | ||||||
| A | 172.67.146.245๐บ๐ธ Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US โ In HTTPS hints | ||||||
| NS | duke.ns.cloudflare.com โญ | ||||||
| A | 2606:4700:58::adf5:3b6e๐บ๐ธ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c16e๐จ๐ท Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:216e๐บ๐ธ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 108.162.193.110๐บ๐ธ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 172.64.33.110๐บ๐ธ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 173.245.59.110๐บ๐ธ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| NS | liberty.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26f0๐บ๐ธ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liberty.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2f0๐จ๐ท Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | liberty.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22f0๐บ๐ธ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | liberty.ns.cloudflare.com | ||||||
| A | 108.162.194.240๐บ๐ธ Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liberty.ns.cloudflare.com | ||||||
| A | 162.159.38.240Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liberty.ns.cloudflare.com | ||||||
| A | 172.64.34.240๐บ๐ธ Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liberty.ns.cloudflare.com | ||||||
| MX | aspmx.l.google.com โญ | ||||||
| A | 2607:f8b0:4004:c23::1a๐บ๐ธ Google2607:f8b0:4004::/48 | ||||||
| PTR | yuiadrs-in-f26.1e100.net | ||||||
| A | 142.251.111.27๐บ๐ธ Google142.251.111.0/24 | ||||||
| PTR | bk-in-f27.1e100.net | ||||||
| MX | alt1.aspmx.l.google.com(5) | ||||||
| A | 2800:3f0:4003:c0f::1b๐จ๐ฑ Google2800:3f0:4003::/48 | ||||||
| A | 108.177.123.27๐บ๐ธ Google108.177.123.0/24 | ||||||
| PTR | lcscld-in-f27.1e100.net | ||||||
| MX | alt2.aspmx.l.google.com(5) | ||||||
| A | 2a00:1450:400b:c02::1b๐ฎ๐ช Google2a00:1450:400b::/48 | ||||||
| PTR | dj-in-f27.1e100.net | ||||||
| A | 172.253.116.27๐บ๐ธ Google172.253.116.0/24 | ||||||
| PTR | dj-in-f27.1e100.net | ||||||
| MX | alt3.aspmx.l.google.com(10) | ||||||
| A | 2a00:1450:4009:c0f::1a๐ฌ๐ง Google2a00:1450:4009::/48 | ||||||
| PTR | yulhrs-in-f26.1e100.net | ||||||
| A | 192.178.223.26๐บ๐ธ Google192.178.223.0/24 | ||||||
| PTR | yulhrs-in-f26.1e100.net | ||||||
| MX | alt4.aspmx.l.google.com(10) | ||||||
| A | 2a00:1450:400c:c23::1a๐ง๐ช Google2a00:1450:400c::/48 | ||||||
| PTR | yubrupd-in-f26.1e100.net | ||||||
| A | 172.253.157.26๐บ๐ธ Google172.253.0.0/16 | ||||||
| PTR | yubrupd-in-f26.1e100.net | ||||||
| TXT | 57FA0E79D7 | ||||||
| TXT | atlassian-domain-verification=9LqQc5/g6HD4PsNjG90naJNseVmTsWIoPjDH1k/xFRZz24k... | ||||||
| TXT | ca3-2a69f73146a74b38a80089a4d0054772 | ||||||
| TXT | google-site-verification=6sOeCNQG0g-PudBmAh845NkZRKy-sadHVyWy_9XV708 | ||||||
| TXT | google-site-verification=VJBeWZ5MBxBGDjc_Y2YQPLLCoeCDoD26l-tS47_jtvU | ||||||
| TXT | v=spf1 include:_spf.google.com ip4:192.99.209.220 ip4:66.70.150.245 include:m... | ||||||
| HTTPS | HTTP/3, HTTP/2 โ hints match | ||||||
| IPv4 hints | 104.21.10.231, 172.67.146.245 | ||||||
| IPv6 hints | 2606:4700:3034::ac43:92f5, 2606:4700:3036::6815:ae7 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=224, name=cloudflare-ech.com | ||||||
| SOA | duke.ns.cloudflare.comdns@cloudflare.com serial=2406200390 | ||||||
com
| DNSSEC | ๐ Signed (DS record present) | ||||||
| NS | a.gtld-servers.net โญ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1781411855 | ||||||
Same first word
Similar names
DNS History
16 records (11 active, 5 former)
โNSduke.ns.cloudflare.com2026-02-15 โ 2026-06-14 ยท 3 obs
โ 2026-02-15 05:41:20
โ 2026-06-14 04:38:22
โNSliberty.ns.cloudflare.com2026-02-15 โ 2026-06-14 ยท 3 obs
โ 2026-02-15 05:41:20
โ 2026-06-14 04:38:22
โNSns1.trimble.com2015-07-12 โ 2017-08-13 ยท 4 obs
โ 2017-08-13 00:31:42
โ 2026-02-15 05:41:20
โ 2026-06-14 04:38:22
โNSns2.trimble.com2015-07-12 โ 2017-08-13 ยท 4 obs
โ 2017-08-13 00:31:42
โ 2026-02-15 05:41:20
โ 2026-06-14 04:38:22
โNSns3.trimble.com2015-07-12 โ 2017-08-13 ยท 4 obs
โ 2017-08-13 00:31:42
โ 2026-02-15 05:41:20
โ 2026-06-14 04:38:22
โMXalt1.aspmx.l.google.com2026-02-15 โ 2026-06-14 ยท 2 obs
โ 2026-06-14 04:38:22
โMXalt2.aspmx.l.google.com2026-02-15 โ 2026-06-14 ยท 2 obs
โ 2026-06-14 04:38:22
โMXalt3.aspmx.l.google.com2026-02-15 โ 2026-06-14 ยท 2 obs
โ 2026-06-14 04:38:22
โMXalt4.aspmx.l.google.com2026-02-15 โ 2026-06-14 ยท 2 obs
โ 2026-06-14 04:38:22
โMXaspmx.l.google.com2026-02-15 โ 2026-06-14 ยท 2 obs
โ 2026-06-14 04:38:22
โA104.21.10.2312026-02-15 โ 2026-06-14 ยท 3 obs
โ 2026-02-15 05:41:20
โ 2026-06-14 04:38:22
โA172.67.146.2452026-02-15 โ 2026-06-14 ยท 3 obs
โ 2026-02-15 05:41:20
โ 2026-06-14 04:38:22
โA192.185.89.902015-10-29 โ 2017-08-13 ยท 5 obs
โ 2015-10-29 09:05:38
โ 2017-08-13 00:31:42
โ 2026-02-15 05:41:20
โ 2026-06-14 04:38:22
โA2606:4700:3034::ac43:92f52026-02-15 โ 2026-06-14 ยท 3 obs
โ 2026-02-15 05:41:20
โ 2026-06-14 04:38:22
โA2606:4700:3036::6815:ae72026-02-15 โ 2026-06-14 ยท 3 obs
โ 2026-02-15 05:41:20
โ 2026-06-14 04:38:22
โA72.249.59.2262015-07-12 โ 2015-07-12 ยท 3 obs
โ 2015-10-29 09:05:38
โ 2026-06-14 04:38:22
๐ DNS Trace
๐ Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| reftek.com | duke.ns.cloudflare.com, liberty.ns.cloudflare.com | 12 records |
โ Authoritative Response
Server:108.162.194.240
NS records: duke.ns.cloudflare.com, liberty.ns.cloudflare.com
๐ DNSSEC Status
โ ๏ธ Insecure (no DNSSEC)
No DS record for reftek.com (unsigned zone)
โฑ๏ธ Timing
Total: 457ms | Queries: -
๐ Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.10.231, 172.67.146.245 |
| AAAA | 2 | 2606:4700:3034::ac43:92f5, 2606:4700:3036::6815:ae7 |
| NS | 2 | duke.ns.cloudflare.com, liberty.ns.cloudflare.com |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 6 | 57FA0E79D7, atlassian-domain-verification=9LqQc5/g6H... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | duke.ns.cloudflare.com dns.cloudflare.co |
๐ Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (duke.ns.cloudflare.com, duke.ns.cloudflare.com, duke.ns.cloudflare.com...)
Analysis
IP Addresses
reftek.com points to four IP numbers: 104.21.10.231, 172.67.146.245, 2606:4700:3034::ac43:92f5 and 2606:4700:3036::6815:ae7.
Two other host names, along with lenday.info, gbrotech.com and ynznwsvc.shop, also share IP numbers with reftek.com.
Name Servers
reftek.com is served by two delegated name servers, duke.ns.cloudflare.com and liberty.ns.cloudflare.com.
reftek.com shares its NS records with other domains, for example bistroaix.com, multiversa.edu.br, dizzynet.net and two others.
reftek.com has at least partial name server overlap with other domains, such as brosler.us, metin2pvp.net, pixelpunchers.net and two others.
These name servers tend to appear together with the name servers eoin.ns.cloudflare.com, chip.ns.cloudflare.com and ruth.ns.cloudflare.com.
DNS names with 6 IP addresses:
duke.ns.cloudflare.com carries IP addresses 108.162.193.110, 172.64.33.110 and 173.245.59.110, with 3 other addresses beyond those.
liberty.ns.cloudflare.com carries IP addresses 108.162.194.240, 162.159.38.240 and 172.64.34.240, with 3 other addresses beyond those.
Mail Servers
reftek.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
There is at least a partial MX overlap between reftek.com and other domains, including somerset.k12.md.us, talulafloor.com, shihiko.com and two others.
These mail servers tend to appear in combination with mail servers alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.
Host names that have two IP addresses:
aspmx.l.google.com maps to two IP addresses โ 142.251.111.27 and 2607:f8b0:4004:c23::1a.
alt1.aspmx.l.google.com maps to two IP addresses โ 108.177.123.27 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com maps to two IP addresses โ 172.253.116.27 and 2a00:1450:400b:c02::1b.
alt3.aspmx.l.google.com maps to two IP addresses โ 192.178.223.26 and 2a00:1450:4009:c0f::1a.
alt4.aspmx.l.google.com maps to two IP addresses โ 172.253.157.26 and 2a00:1450:400c:c23::1a.