userback.io - dns.ninja

`userback.io`

DNSSEC	⚠️ Not signed
A	5.78.181.69^{🇺🇸 HETZNER-CLOUD3-AS5.78.0.0/16 HETZNER-DC}
		PTR	`static.69.181.78.5.clients.your-server.de`
NS	`ns-695.awsdns-22.net` ⭐
		A	2600:9000:5302:b700::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-695.awsdns-22.net`
		A	205.251.194.183^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-695.awsdns-22.net`
NS	`ns-1184.awsdns-20.org`
		A	2600:9000:5304:a000::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1184.awsdns-20.org`
		A	205.251.196.160^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1184.awsdns-20.org`
NS	`ns-1729.awsdns-24.co.uk`
		A	2600:9000:5306:c100::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1729.awsdns-24.co.uk`
		A	205.251.198.193^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1729.awsdns-24.co.uk`
NS	`ns-437.awsdns-54.com`
		A	2600:9000:5301:b500::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-437.awsdns-54.com`
		A	205.251.193.181^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-437.awsdns-54.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c0b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f27.1e100.net`
		A	64.233.180.27^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f27.1e100.net`
			PTR	`pe-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.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	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.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	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`ca3-9f7830b2aa064d5e963ef5e213d95cce`
TXT	`google-site-verification=ASgRLxRYYRkuDaYwcJp6F1usR8N9QHXl9hRwbSFfRak`
TXT	`google-site-verification=XjTf7Hubj56AVeYDQ2gcQU_8Em47izcO2zKWUGbTeZg`
TXT	`v=spf1 a mx include:_spf.google.com include:spf.v6send.net include:22107309.s...`
SOA	`ns-695.awsdns-22.net`awsdns-hostmaster@amazon.com serial=1

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1786207526

rank #310467 globally
rank #2514 in the tld
WOT: SAFE (79/100)
📈 Tranco rank: #30,735

Subdomains

auth.userback.io

app.userback.io

static.userback.io

www.userback.io

events.userback.io

api.userback.io

Same first word

userback.ru

userback.com.cn

userback.com.au

userback.com

userback.io

Similar names

DNS History

18 records (10 active, 8 former)

●NSns-1184.awsdns-20.org2016-12-05 → 2026-08-08 · 2 obs

● 2016-12-05 03:07:16
● 2026-08-08 16:58:14

●NSns-1729.awsdns-24.co.uk2016-12-05 → 2026-08-08 · 2 obs

● 2016-12-05 03:07:16
● 2026-08-08 16:58:14

●NSns-437.awsdns-54.com2016-12-05 → 2026-08-08 · 2 obs

● 2016-12-05 03:07:16
● 2026-08-08 16:58:14

●NSns-695.awsdns-22.net2016-12-05 → 2026-08-08 · 2 obs

● 2016-12-05 03:07:16
● 2026-08-08 16:58:14

●MXalt1.aspmx.l.google.com2016-12-05 → 2026-08-08 · 2 obs

● 2016-12-05 03:07:16
● 2026-08-08 16:58:14

●MXalt2.aspmx.l.google.com2016-12-05 → 2026-08-08 · 2 obs

● 2016-12-05 03:07:16
● 2026-08-08 16:58:14

●MXalt3.aspmx.l.google.com2016-12-05 → 2026-08-08 · 2 obs

● 2016-12-05 03:07:16
● 2026-08-08 16:58:14

●MXalt4.aspmx.l.google.com2016-12-05 → 2026-08-08 · 2 obs

● 2016-12-05 03:07:16
● 2026-08-08 16:58:14

●MXaspmx.l.google.com2016-12-05 → 2026-08-08 · 2 obs

● 2016-12-05 03:07:16
● 2026-08-08 16:58:14

○A13.227.75.1132021-06-07 → 2021-06-07 · 4 obs

○ 2017-06-20 03:43:58
● 2021-06-07 22:51:10
○ 2026-02-16 05:59:22
○ 2026-08-08 16:58:14

○A13.227.75.252021-06-07 → 2021-06-07 · 4 obs

○ 2017-06-20 03:43:58
● 2021-06-07 22:51:10
○ 2026-02-16 05:59:22
○ 2026-08-08 16:58:14

○A13.227.75.472021-06-07 → 2021-06-07 · 4 obs

○ 2017-06-20 03:43:58
● 2021-06-07 22:51:10
○ 2026-02-16 05:59:22
○ 2026-08-08 16:58:14

○A13.227.75.962021-06-07 → 2021-06-07 · 4 obs

○ 2017-06-20 03:43:58
● 2021-06-07 22:51:10
○ 2026-02-16 05:59:22
○ 2026-08-08 16:58:14

○A162.159.136.542026-02-16 → 2026-04-15 · 5 obs

○ 2021-06-07 22:51:10
● 2026-02-16 05:59:22
● 2026-04-15 20:59:52
○ 2026-04-25 20:28:00
○ 2026-08-08 16:58:14

○A162.159.137.542026-02-16 → 2026-04-15 · 5 obs

○ 2021-06-07 22:51:10
● 2026-02-16 05:59:22
● 2026-04-15 20:59:52
○ 2026-04-25 20:28:00
○ 2026-08-08 16:58:14

○A34.192.232.742016-12-05 → 2017-06-20 · 4 obs

● 2016-12-05 03:07:16
● 2017-06-20 03:43:58
○ 2021-06-07 22:51:10
○ 2026-08-08 16:58:14

●A5.78.181.692026-04-25 → 2026-08-08 · 3 obs

○ 2026-04-15 20:59:52
● 2026-04-25 20:28:00
● 2026-08-08 16:58:14

○A52.200.76.1732016-12-05 → 2017-06-20 · 4 obs

● 2016-12-05 03:07:16
● 2017-06-20 03:43:58
○ 2021-06-07 22:51:10
○ 2026-08-08 16:58:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
userback.io	ns-1729.awsdns-24.co.uk, ns-695.awsdns-22.net, ns-437.awsdns-54.com, ns-1184.awsdns-20.org	-

✅ Authoritative Response

Server:205.251.196.160

NS records: ns-1729.awsdns-24.co.uk, ns-695.awsdns-22.net, ns-437.awsdns-54.com, ns-1184.awsdns-20.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for userback.io (unsigned zone)

⏱️ Timing

Total: 834ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.78.181.69`
NS	4	`ns-1184.awsdns-20.org, ns-1729.awsdns-24.co.uk...`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	4	`ca3-9f7830b2aa064d5e963ef5e213d95cce, google-site-verification=ASgRLxRYYRkuDaY...`
SOA	1	`ns-695.awsdns-22.net awsdns-hostmaster.a`

Analysis

Hierarchy

userback.io serves as parent to auth.userback.io, app.userback.io, static.userback.io, www.userback.io, events.userback.io along with a few other host names.

IP Addresses

userback.io resolves to one IP address: 5.78.181.69.

Host names like static.69.181.78.5.clients.your-server.de are further examples that share IP numbers with userback.io.

Name Servers

The authoritative name servers for userback.io are ns-437.awsdns-54.com, ns-695.awsdns-22.net, ns-1184.awsdns-20.org and ns-1729.awsdns-24.co.uk.

userback.io has at least partial name server overlap with other domains, such as assets.feature6.shippingeasy.com, aws.sc, brussels.weepee.org and two others.

ns-437.awsdns-54.com, ns-695.awsdns-22.net, ns-1184.awsdns-20.org and ns-1729.awsdns-24.co.uk all point to exactly two IP numbers each: ns-437.awsdns-54.com → 205.251.193.181 and 2600:9000:5301:b500::1; ns-695.awsdns-22.net → 205.251.194.183 and 2600:9000:5302:b700::1; ns-1184.awsdns-20.org → 205.251.196.160 and 2600:9000:5304:a000::1; ns-1729.awsdns-24.co.uk → 205.251.198.193 and 2600:9000:5306:c100::1.

Mail Servers

Mail for userback.io is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

userback.io has at least partial mail server overlap with other domains such as man.fo, nextlevelmuaythai.com, cambiosluna.com and two more.

These mail servers commonly co-occur with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.

Hostnames that resolve to two IP addresses:

aspmx.l.google.com resolves to two addresses: 64.233.180.27 and 2607:f8b0:4004:c0b::1b.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.26 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.27 and 2a00:1450:400b:c02::1a.

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

alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.26 and 2a00:1450:400c:c23::1b.