refdocs.com - dns.ninja

`refdocs.com`

DNSSEC	🔒 Signed (DS record present)
A	35.212.81.117^{🇺🇸 Google35.212.0.0/17}
		PTR	`117.81.212.35.bc.googleusercontent.com`
NS	`ns-703.awsdns-23.net` ⭐
		A	2600:9000:5302:bf00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-703.awsdns-23.net`
		A	205.251.194.191^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-703.awsdns-23.net`
NS	`ns-100.awsdns-12.com`
		A	2600:9000:5300:6400::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-100.awsdns-12.com`
		A	205.251.192.100^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-100.awsdns-12.com`
NS	`ns-1214.awsdns-23.org`
		A	2600:9000:5304:be00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1214.awsdns-23.org`
		A	205.251.196.190^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1214.awsdns-23.org`
NS	`ns-1972.awsdns-54.co.uk`
		A	2600:9000:5307:b400::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1972.awsdns-54.co.uk`
		A	205.251.199.180^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1972.awsdns-54.co.uk`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	64.233.180.26^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f26.1e100.net`
			PTR	`pe-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`v=spf1 +a +mx +ip4:35.212.46.228 include:refdocs.com.spf.auto.dnssmarthost.n...`
SOA	`ns-703.awsdns-23.net`awsdns-hostmaster@amazon.com serial=1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	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.net`nstld@verisign-grs.com serial=1782500435

Same first word

refdocs.com

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DNS History

20 records (10 active, 10 former)

●NSns-100.awsdns-12.com2026-04-05 → 2026-06-26 · 3 obs

○ 2017-04-21 03:56:30
● 2026-04-05 13:12:16
● 2026-06-26 19:23:46

●NSns-1214.awsdns-23.org2026-04-05 → 2026-06-26 · 3 obs

○ 2017-04-21 03:56:30
● 2026-04-05 13:12:16
● 2026-06-26 19:23:46

●NSns-1972.awsdns-54.co.uk2026-04-05 → 2026-06-26 · 3 obs

○ 2017-04-21 03:56:30
● 2026-04-05 13:12:16
● 2026-06-26 19:23:46

●NSns-703.awsdns-23.net2026-04-05 → 2026-06-26 · 3 obs

○ 2017-04-21 03:56:30
● 2026-04-05 13:12:16
● 2026-06-26 19:23:46

○NSns37.domaincontrol.com2016-09-13 → 2017-04-21 · 5 obs

○ 2016-01-03 13:48:56
● 2016-09-13 12:28:20
● 2017-04-21 03:56:30
○ 2026-04-05 13:12:16
○ 2026-06-26 19:23:46

○NSns38.domaincontrol.com2016-09-13 → 2017-04-21 · 5 obs

○ 2016-01-03 13:48:56
● 2016-09-13 12:28:20
● 2017-04-21 03:56:30
○ 2026-04-05 13:12:16
○ 2026-06-26 19:23:46

○NSns51.1and1.com2015-04-13 → 2015-10-24 · 4 obs

● 2015-04-13 06:35:00
● 2015-10-24 13:24:24
○ 2016-01-03 13:48:56
○ 2026-06-26 19:23:46

○NSns52.1and1.com2015-04-13 → 2015-10-24 · 4 obs

● 2015-04-13 06:35:00
● 2015-10-24 13:24:24
○ 2016-01-03 13:48:56
○ 2026-06-26 19:23:46

●MXalt1.aspmx.l.google.com2026-04-05 → 2026-06-26 · 3 obs

○ 2017-04-21 03:56:30
● 2026-04-05 13:12:16
● 2026-06-26 19:23:46

●MXalt2.aspmx.l.google.com2026-04-05 → 2026-06-26 · 3 obs

○ 2017-04-21 03:56:30
● 2026-04-05 13:12:16
● 2026-06-26 19:23:46

●MXalt3.aspmx.l.google.com2026-04-05 → 2026-06-26 · 3 obs

○ 2017-04-21 03:56:30
● 2026-04-05 13:12:16
● 2026-06-26 19:23:46

●MXalt4.aspmx.l.google.com2026-04-05 → 2026-06-26 · 3 obs

○ 2017-04-21 03:56:30
● 2026-04-05 13:12:16
● 2026-06-26 19:23:46

●MXaspmx.l.google.com2026-04-05 → 2026-06-26 · 3 obs

○ 2017-04-21 03:56:30
● 2026-04-05 13:12:16
● 2026-06-26 19:23:46

○MXmailstore1.secureserver.net2016-09-13 → 2017-04-21 · 5 obs

○ 2016-01-03 13:48:56
● 2016-09-13 12:28:20
● 2017-04-21 03:56:30
○ 2026-04-05 13:12:16
○ 2026-06-26 19:23:46

○MXmx00.1and1.com2015-04-13 → 2015-10-24 · 4 obs

● 2015-04-13 06:35:00
● 2015-10-24 13:24:24
○ 2016-01-03 13:48:56
○ 2026-06-26 19:23:46

○MXmx01.1and1.com2015-04-13 → 2015-10-24 · 4 obs

● 2015-04-13 06:35:00
● 2015-10-24 13:24:24
○ 2016-01-03 13:48:56
○ 2026-06-26 19:23:46

○MXsmtp.secureserver.net2016-09-13 → 2017-04-21 · 5 obs

○ 2016-01-03 13:48:56
● 2016-09-13 12:28:20
● 2017-04-21 03:56:30
○ 2026-04-05 13:12:16
○ 2026-06-26 19:23:46

○A103.16.199.852016-09-13 → 2017-04-21 · 5 obs

○ 2016-01-03 13:48:56
● 2016-09-13 12:28:20
● 2017-04-21 03:56:30
○ 2026-04-05 13:12:16
○ 2026-06-26 19:23:46

○A199.34.228.1002015-04-13 → 2015-10-24 · 4 obs

● 2015-04-13 06:35:00
● 2015-10-24 13:24:24
○ 2016-01-03 13:48:56
○ 2026-06-26 19:23:46

●A35.212.81.1172026-04-05 → 2026-06-26 · 3 obs

○ 2017-04-21 03:56:30
● 2026-04-05 13:12:16
● 2026-06-26 19:23:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
refdocs.com	ns-100.awsdns-12.com, ns-703.awsdns-23.net, ns-1214.awsdns-23.org, ns-1972.awsdns-54.co.uk	2 records

✅ Authoritative Response

Server:205.251.194.191

NS records: ns-100.awsdns-12.com, ns-703.awsdns-23.net, ns-1214.awsdns-23.org, ns-1972.awsdns-54.co.uk

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1521ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`35.212.81.117`
NS	4	`ns-100.awsdns-12.com, ns-1214.awsdns-23.org...`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`v=spf1 +a +mx +ip4:35.212.46.228 includ`
SOA	1	`ns-703.awsdns-23.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-100.awsdns-12.com, ns-100.awsdns-12.com)

Analysis

IP Addresses

refdocs.com points to a single IP number: 35.212.81.117.

Additional host names — blessedsacrament.ca, greatestcopywriters.com, servicemode.com and two others — share IP numbers with refdocs.com.

Name Servers

refdocs.com has four authoritative name servers: ns-100.awsdns-12.com, ns-703.awsdns-23.net, ns-1214.awsdns-23.org and ns-1972.awsdns-54.co.uk.

The name servers of refdocs.com overlap at least partially with those of other domains — among them banter.io, joalheriagoncalves.com.br, d1bu6z2uxfnay3.cloudfront.net and two more.

The name servers ns-708.awsdns-24.net, ns-1444.awsdns-52.org and ns-1697.awsdns-20.co.uk are commonly seen alongside these name servers.

Each of the four hosts ns-100.awsdns-12.com, ns-703.awsdns-23.net, ns-1214.awsdns-23.org and ns-1972.awsdns-54.co.uk has two IP addresses. ns-100.awsdns-12.com points to 205.251.192.100 and 2600:9000:5300:6400::1. ns-703.awsdns-23.net points to 205.251.194.191 and 2600:9000:5302:bf00::1. ns-1214.awsdns-23.org points to 205.251.196.190 and 2600:9000:5304:be00::1. ns-1972.awsdns-54.co.uk points to 205.251.199.180 and 2600:9000:5307:b400::1.

Mail Servers

Five mail servers handle refdocs.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

refdocs.com shares mail servers — at least in part — with other domains, including ns500794.ns500794.ns500794.ns500821.ns500841.ns500821.ns500821.ns500821.ns500821.ns500795.ns500795.ns500821.ns500821.ns500795.ns500790.ns500795.lustypartnersfinder.com, erasmusbih.com, vandok.co.uk and two others.

These mail servers are frequently paired with the mail servers alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com resolves to two addresses: 64.233.180.26 and 2607:f8b0:4004:c23::1a.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1b.