`nullmx.blackboards.com`

DNSSEC	⚠️ Not signed
A	103.224.212.203^{🇦🇺 TRELLIAN-AS-AP103.224.212.0/23 Trellian Pty. Limited 8 East Concourse}
		PTR	`lb-212-203.above.com`
NS	`ns1.abovedomains.com` ⭐ ⚠️ Not in parent delegation
		A	103.224.182.9^{🇦🇺 TRELLIAN-AS-AP103.224.182.0/23 Trellian Pty. Limited 8 East Concourse}
			PTR	`ns1.above.com`
		A	103.224.212.9^{🇦🇺 TRELLIAN-AS-AP103.224.212.0/23 Trellian Pty. Limited 8 East Concourse}
			PTR	`ns1.above.com`
NS	`ns2.abovedomains.com` ⚠️ Not in parent delegation
		A	103.224.182.10^{🇦🇺 TRELLIAN-AS-AP103.224.182.0/23 Trellian Pty. Limited 8 East Concourse}
			PTR	`ns2.above.com`
		A	103.224.212.10^{🇦🇺 TRELLIAN-AS-AP103.224.212.0/23 Trellian Pty. Limited 8 East Concourse}
			PTR	`ns2.above.com`
MX	`park-mx.above.com` ⭐
		A	103.224.212.34^{🇦🇺 TRELLIAN-AS-AP103.224.212.0/23 Trellian Pty. Limited 8 East Concourse}
			PTR	`park-mx.above.com`
TXT	`v=spf1 ip6:fdcf:abda:4154::/48 -all`
TXT	`0ad094978b47130a6a809a0396525cae21191ed6`
SOA	`ns1.abovedomains.com`hostmaster@trellian.com 2026-03-29 #1

`blackboards.com`

	DNSSEC	⚠️ Not signed
	A	103.224.212.203^{🇦🇺 TRELLIAN-AS-AP103.224.212.0/23 Trellian Pty. Limited 8 East Concourse}
	NS	`ns1.abovedomains.com` ⭐ ⚠️ Not in parent delegation
	NS	`151.ns1.abovedomains.com` ⚠️ Not in zone NS records
	NS	`151.ns2.abovedomains.com` ⚠️ Not in zone NS records
	NS	`ns2.abovedomains.com` ⚠️ Not in parent delegation
	MX	`park-mx.above.com` ⭐
	TXT	`v=spf1 ip6:fdcf:abda:4154::/48 -all`
	TXT	`0ad094978b47130a6a809a0396525cae21191ed6`
	SOA	`ns1.abovedomains.com`hostmaster@trellian.com 2026-03-29 #1

Previously MX for

blackboards.com

Same first word

nullmx.org

nullmx.com

nullmx.net

Similar names

mlnxul.com

DNS History

9 records (4 active, 5 former)

○NSbuy.internettraffic.com2015-10-09 → 2016-07-21 · 3 obs

● 2015-10-09 02:24:56
● 2016-07-21 18:10:10
○ 2026-03-29 03:20:24

●NSns1.abovedomains.com2026-03-29 → 2026-03-29 · 2 obs

○ 2016-07-21 18:10:10
● 2026-03-29 03:20:24

●NSns2.abovedomains.com2026-03-29 → 2026-03-29 · 2 obs

○ 2016-07-21 18:10:10
● 2026-03-29 03:20:24

○NSsell.internettraffic.com2015-10-09 → 2016-07-21 · 3 obs

● 2015-10-09 02:24:56
● 2016-07-21 18:10:10
○ 2026-03-29 03:20:24

●MXpark-mx.above.com2026-03-29 → 2026-03-29 · 1 obs

● 2026-03-29 03:20:24

●A103.224.212.2032026-03-29 → 2026-03-29 · 2 obs

○ 2016-07-21 18:10:10
● 2026-03-29 03:20:24

○A209.181.247.1052015-02-23 → 2015-02-23 · 3 obs

● 2015-02-23 14:21:10
○ 2015-10-09 02:24:56
○ 2026-03-29 03:20:24

○A69.172.201.1532016-07-21 → 2016-07-21 · 3 obs

○ 2016-03-26 02:26:24
● 2016-07-21 18:10:10
○ 2026-03-29 03:20:24

○A69.172.201.2082015-10-09 → 2016-03-26 · 5 obs

○ 2015-02-23 14:21:10
● 2015-10-09 02:24:56
● 2016-03-26 02:26:24
○ 2016-07-21 18:10:10
○ 2026-03-29 03:20:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
blackboards.com	151.ns1.abovedomains.com, 151.ns2.abovedomains.com	4 records

✅ Authoritative Response

Server:103.224.182.10

NS records: 151.ns1.abovedomains.com, 151.ns2.abovedomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for blackboards.com (unsigned zone)

⏱️ Timing

Total: 137ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.224.212.203`
NS	2	`ns2.abovedomains.com, ns1.abovedomains.com`
MX	1	`park-mx.above.com (pri: 10)`
TXT	2	`0ad094978b47130a6a809a0396525cae21191ed6, v=spf1 ip6:fdcf:abda:4154::/48 -all`
SOA	1	`ns1.abovedomains.com hostmaster.trellian`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (151.ns1.abovedomains.com, 151.ns1.abovedomains.com, 151.ns2.abovedomains.com...)

Analysis

IP Addresses

nullmx.blackboards.com points to IP number: 103.224.212.203.

Other host names such as thecover.be, aarp.geeksquard.com, properson.eu, mx1.ipmg.com.au and leonies.com share IPs with nullmx.blackboards.com.

Name Servers

nullmx.blackboards.com is delegated to two name servers: ns1.abovedomains.com and ns2.abovedomains.com.

nullmx.blackboards.com shares the same name server setup as mercin.com, m39.qcxhlxh.com, coconutcurry.at, htmme.(0x706f726e)ohub.us and biliksewa.com.

nullmx.blackboards.com at least partially shares name servers with other domains, for instance nitq.com, mx2.aleksandryarkin.com, internationalnewsagency.org, sharan.net and dourt.com.

These name servers are commonly used alongside ns15.abovedomains.com, ns16.abovedomains.com, 5014.ns1.abovedomains.com, 5014.ns2.abovedomains.com, 421.ns1.abovedomains.com, 421.ns2.abovedomains.com, ns1.above.com, ns2.above.com, contact-us-at.edoms.biz and domain-may-be-for-sale-at.edoms.biz.

Host names with two IP numbers: ns1.abovedomains.com points to: 103.224.182.9 and 103.224.212.9; ns2.abovedomains.com points to: 103.224.182.10 and 103.224.212.10.

Mail Servers

nullmx.blackboards.com is handled by a single mail server, park-mx.above.com.

The mail server setup for nullmx.blackboards.com matches that of other domains, for instance wap.gooe.com, ns1.damietta.net, penpalnow.com, linkedi.com and www.ovplay.com.

park-mx.above.com points to a single IP: 103.224.212.34.

nullmx.blackboards.com - robtex.com