memtest86.com - dns.ninja

`memtest86.com`

DNSSEC	⚠️ Not signed
A	216.146.215.39^{🇺🇸 AS7859216.146.192.0/19 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
NS	`dns4.pair.com` ⭐ ⚠️ Not in parent delegation
		A	2607:f440::d85c:fc0a^{🇺🇸 AS78592607:f440::/32 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`dns4.pair.com`
		A	216.92.252.10^{🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`dns4.pair.com`
NS	`ns2.quickserve.com` ⚠️ Not in zone NS records
		A	66.39.65.254^{🇺🇸 AS785966.39.0.0/17 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`ns2.quickserve.com`
NS	`ns7.ns0.com`
		A	2607:f440::d85c:97fe^{🇺🇸 AS78592607:f440::/32 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`ns7.ns0.com`
		A	216.92.151.254^{🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`ns7.ns0.com`
MX	`qs4674.pair.com` ⭐
		A	2607:f441::d892:c331^{🇺🇸 AS78592607:f441::/32 Pair Networks, Inc. 2403 Sidney St STE 210 Pittsburgh PA 15203 United States}
			PTR	`qs4674.pair.com`
		A	216.146.195.49^{🇺🇸 AS7859216.146.192.0/19 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`qs4674.pair.com`
TXT	`v=spf1 mx a -all`
SOA	`dns4.pair.com`root@pair.com 2026-05-06 #24

`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=1785408852

rank #19420 globally
rank #9494 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #66,366

PTR for

39.215.146.216.in-addr.arpa

Subdomains

www.memtest86.com

Same first word

memtest86.org

memtest86.com

memtest86.ru

memtest86.net

DNS History

9 records (5 active, 4 former)

●NSdns4.pair.com2026-03-10 → 2026-07-30 · 3 obs

○ 2015-07-17 15:46:38
● 2026-03-10 07:52:04
● 2026-07-30 11:04:24

●NSns2.quickserve.com2015-07-17 → 2026-07-30 · 2 obs

● 2015-07-17 15:46:38
● 2026-07-30 11:04:24

●NSns7.ns0.com2015-07-17 → 2026-07-30 · 2 obs

● 2015-07-17 15:46:38
● 2026-07-30 11:04:24

○MXqs3353.pair.com2015-07-17 → 2016-01-20 · 4 obs

● 2015-07-17 15:46:38
● 2016-01-20 16:42:20
○ 2016-04-16 22:15:54
○ 2026-07-30 11:04:24

○MXqs4050.pair.com2016-04-16 → 2017-02-03 · 5 obs

○ 2016-01-20 16:42:20
● 2016-04-16 22:15:54
● 2017-02-03 16:50:46
○ 2018-11-07 00:04:26
○ 2026-07-30 11:04:24

○MXqs4246.pair.com2018-11-07 → 2018-11-07 · 4 obs

○ 2017-02-03 16:50:46
● 2018-11-07 00:04:26
○ 2026-03-10 07:52:04
○ 2026-07-30 11:04:24

●MXqs4674.pair.com2026-03-10 → 2026-07-30 · 3 obs

○ 2018-11-07 00:04:26
● 2026-03-10 07:52:04
● 2026-07-30 11:04:24

●A216.146.215.392018-11-07 → 2026-07-30 · 3 obs

○ 2017-02-03 16:50:46
● 2018-11-07 00:04:26
● 2026-07-30 11:04:24

○A66.39.24.62015-07-17 → 2017-02-03 · 4 obs

● 2015-07-17 15:46:38
● 2017-02-03 16:50:46
○ 2018-11-07 00:04:26
○ 2026-07-30 11:04:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
memtest86.com	ns2.quickserve.com, ns7.ns0.com	3 records

✅ Authoritative Response

Server:216.92.151.254

NS records: ns2.quickserve.com, ns7.ns0.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for memtest86.com (unsigned zone)

⏱️ Timing

Total: 364ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.146.215.39`
NS	2	`dns4.pair.com, ns7.ns0.com`
MX	1	`qs4674.pair.com (pri: 50)`
TXT	1	`v=spf1 mx a -all`
SOA	1	`dns4.pair.com root.pair.com`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns2.quickserve.com, ns7.ns0.com, ns7.ns0.com)

Analysis

Hierarchy

The domain www.memtest86.com falls under the parent memtest86.com.

IP Addresses

memtest86.com resolves to one IP address: 216.146.215.39.

Name Servers

DNS for memtest86.com is handled by three authoritative name servers: ns7.ns0.com, dns4.pair.com and ns2.quickserve.com.

At least some of memtest86.com's name servers are shared with other domains, for example janaxelson.com, studylamp.com, nickhudsonphotography.com and two more.

These name servers tend to co-occur with ns8.ns0.com, dns.pair.com, ns9.ns0.com and 5 other name servers in the same DNS delegations.

Hostnames that resolve to two IP addresses:

ns7.ns0.com has two IP addresses: 216.92.151.254 and 2607:f440::d85c:97fe.

dns4.pair.com has two IP addresses: 216.92.252.10 and 2607:f440::d85c:fc0a.

Hosts with just one IP address:

ns2.quickserve.com directs to 66.39.65.254.

Mail Servers

Mail for memtest86.com is handled by a single mail server, qs4674.pair.com.

memtest86.com uses an identical mail server configuration to several other domains — among them memorybenchmark.net, keyboardtest.com, videocardbenchmark.net and two more.

qs4674.pair.com directs to two IP numbers, 216.146.195.49 and 2607:f441::d892:c331.