hardproblem.ru - dns.ninja

`hardproblem.ru`

DNSSEC	⚠️ Not signed
A	91.107.122.148^{🇬🇧 RU-JSCIOT91.107.120.0/21}
		PTR	`3-core.ru`
NS	`ns7-65.akam.net` ⭐
		A	96.7.49.65
NS	`ns1-105.akam.net`
		A	2600:1401:2::69^{Akamai2600:1401:2::/48 Technologies}
		A	193.108.91.105^{Akamai193.108.91.0/24 Technologies}
NS	`ns4-65.akam.net`
		A	84.53.139.65
NS	`ns5-64.akam.net`
		A	184.85.248.64^{Akamai184.85.248.0/24 Technologies}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c0b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f26.1e100.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	108.177.123.27^{🇺🇸 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	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
TXT	`v=spf2.0/mfrom mx ip4:52.60.177.59 ip4:52.36.252.44 include:spf.unisender.com...`
TXT	`v=spf1 mx ip4:52.60.177.59 ip4:52.36.252.44 include:spf.unisender.com include...`
TXT	`google-site-verification=AEp_rAnfRZwuJMw1DWJPOF0aWfxErbei1oWHFGn52Lo`
SOA	`ns7-65.akam.net`hostmaster@akamai.com serial=1544440676

`ru`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.ripn.net` ⭐
	NS	`b.dns.ripn.net`
	NS	`d.dns.ripn.net`
	NS	`e.dns.ripn.net`
	NS	`f.dns.ripn.net`
	SOA	`a.dns.ripn.net`hostmaster@ripn.net serial=4069580

WOT: UNKNOWN (72/100)

Subdomains

www.hardproblem.ru

Same first word

hardproblem.org

hardproblem.net

hardproblem.ru

DNS History

17 records (8 active, 9 former)

○NSns.maine-inc.net2015-07-03 → 2015-11-13 · 4 obs

● 2015-07-03 03:26:42
● 2015-11-13 12:15:02
○ 2016-02-04 21:03:54
○ 2026-07-11 22:27:30

●NSns1-105.akam.net2016-02-04 → 2026-07-11 · 3 obs

○ 2015-11-13 12:15:02
● 2016-02-04 21:03:54
● 2026-07-11 22:27:30

○NSns2.maine-inc.net2015-07-03 → 2015-11-13 · 4 obs

● 2015-07-03 03:26:42
● 2015-11-13 12:15:02
○ 2016-02-04 21:03:54
○ 2026-07-11 22:27:30

●NSns4-65.akam.net2016-02-04 → 2026-07-11 · 3 obs

○ 2015-11-13 12:15:02
● 2016-02-04 21:03:54
● 2026-07-11 22:27:30

●NSns5-64.akam.net2016-02-04 → 2026-07-11 · 3 obs

○ 2015-11-13 12:15:02
● 2016-02-04 21:03:54
● 2026-07-11 22:27:30

○NSns5.maineinc.net2015-07-03 → 2015-11-13 · 4 obs

● 2015-07-03 03:26:42
● 2015-11-13 12:15:02
○ 2016-02-04 21:03:54
○ 2026-07-11 22:27:30

●NSns7-65.akam.net2016-02-04 → 2026-07-11 · 3 obs

○ 2015-11-13 12:15:02
● 2016-02-04 21:03:54
● 2026-07-11 22:27:30

●MXalt1.aspmx.l.google.com2026-04-06 → 2026-07-11 · 3 obs

○ 2018-01-18 16:46:20
● 2026-04-06 16:27:00
● 2026-07-11 22:27:30

●MXalt2.aspmx.l.google.com2026-04-06 → 2026-07-11 · 3 obs

○ 2018-01-18 16:46:20
● 2026-04-06 16:27:00
● 2026-07-11 22:27:30

●MXaspmx.l.google.com2026-04-06 → 2026-07-11 · 3 obs

○ 2018-01-18 16:46:20
● 2026-04-06 16:27:00
● 2026-07-11 22:27:30

○MXmx.scanna.com2015-07-03 → 2018-01-18 · 4 obs

● 2015-07-03 03:26:42
● 2018-01-18 16:46:20
○ 2026-04-06 16:27:00
○ 2026-07-11 22:27:30

○A178.248.235.372015-11-13 → 2016-02-04 · 5 obs

○ 2015-07-03 03:26:42
● 2015-11-13 12:15:02
● 2016-02-04 21:03:54
○ 2016-04-29 21:12:32
○ 2026-07-11 22:27:30

○A185.76.145.1802016-04-29 → 2017-11-06 · 5 obs

○ 2016-02-04 21:03:54
● 2016-04-29 21:12:32
● 2017-11-06 17:22:50
○ 2018-01-18 16:46:20
○ 2026-07-11 22:27:30

○A212.193.59.542026-04-06 → 2026-07-11 · 2 obs

○ 2026-04-06 16:27:00
○ 2026-07-11 22:27:30

○A213.247.247.1882015-07-03 → 2015-07-03 · 3 obs

● 2015-07-03 03:26:42
○ 2015-11-13 12:15:02
○ 2026-07-11 22:27:30

○A89.223.30.382018-01-18 → 2018-01-18 · 4 obs

○ 2017-11-06 17:22:50
● 2018-01-18 16:46:20
○ 2026-04-06 16:27:00
○ 2026-07-11 22:27:30

●A91.107.122.1482026-04-06 → 2026-07-11 · 3 obs

○ 2018-01-18 16:46:20
● 2026-04-06 16:27:00
● 2026-07-11 22:27:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	b.dns.ripn.net, f.dns.ripn.net, d.dns.ripn.net, a.dns.ripn.net...	-
hardproblem.ru	ns4-65.akam.net, ns5-64.akam.net, ns7-65.akam.net, ns1-105.akam.net	-

✅ Authoritative Response

Server:193.108.91.105

NS records: ns4-65.akam.net, ns5-64.akam.net, ns7-65.akam.net, ns1-105.akam.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hardproblem.ru (unsigned zone)

⏱️ Timing

Total: 1353ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.107.122.148`
NS	4	`ns1-105.akam.net, ns7-65.akam.net...`
MX	3	`alt1.aspmx.l.google.com (pri: 5), aspmx.l.google.com (pri: 1)...`
TXT	3	`v=spf1 mx ip4:52.60.177.59 ip4:52.36.252, v=spf2.0/mfrom mx ip4:52.60.177.59 ip4:5...`
SOA	1	`ns7-65.akam.net hostmaster.akamai.com`

Analysis

Hierarchy

hardproblem.ru is a parent domain of www.hardproblem.ru.

IP Addresses

hardproblem.ru resolves to just one IP address, 91.107.122.148.

3-core.ru, triko.agency and philosophy.ru are examples of other host names that share IP numbers with hardproblem.ru.

Name Servers

The NS records for hardproblem.ru point to four name servers: ns1-105.akam.net, ns4-65.akam.net, ns5-64.akam.net and ns7-65.akam.net.

Host names that have two IP addresses:

ns1-105.akam.net resolves to two addresses: 193.108.91.105 and 2600:1401:2::69.

Host names that point to one IP address:

The hostname ns4-65.akam.net resolves to 84.53.139.65.

The hostname ns5-64.akam.net resolves to 184.85.248.64.

The hostname ns7-65.akam.net resolves to 96.7.49.65.

Mail Servers

hardproblem.ru is handled by three mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com are three hostnames that each resolve to a pair of IP addresses: aspmx.l.google.com to 64.233.180.27 and 2607:f8b0:4004:c0b::1a, alt1.aspmx.l.google.com to 108.177.123.27 and 2800:3f0:4003:c0f::1a, and alt2.aspmx.l.google.com to 172.253.116.27 and 2a00:1450:400b:c02::1a.