`smartgrading.com`

DNSSEC	⚠️ Not signed
A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
		PTR	`ip-207-148-248-143.defastlink.net`
NS	`ns.buydomains.com` ⚠️ Not in zone NS records
		A	52.20.26.87^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-26-87.compute-1.amazonaws.com`
NS	`this-domain-for-sale.com` ⚠️ Not in zone NS records
		A	52.20.26.87^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-26-87.compute-1.amazonaws.com`

`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=1771291435

WOT: SAFE (67/100)

Subdomains

www.smartgrading.com

Same first word

smartgrading.com

DNS History

9 records (3 active, 6 former)

●NSns.buydomains.com2015-07-22 → 2026-03-10 · 3 obs

○ 2008-03-15 11:32:38
● 2015-07-22 22:18:52
● 2026-03-10 00:27:56

○NSns5.webcontrolcenter.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 11:32:38
○ 2015-07-22 22:18:52
○ 2026-03-10 00:27:56

○NSns6.webcontrolcenter.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 11:32:38
○ 2015-07-22 22:18:52
○ 2026-03-10 00:27:56

●NSthis-domain-for-sale.com2026-02-17 → 2026-03-10 · 3 obs

○ 2015-07-22 22:18:52
● 2026-02-17 18:50:32
● 2026-03-10 00:27:56

○MXmailb3.webcontrolcenter.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 11:32:38
○ 2015-07-22 22:18:52
○ 2026-03-10 00:27:56

○A141.8.225.1242015-11-20 → 2016-07-22 · 5 obs

○ 2015-07-22 22:18:52
● 2015-11-20 07:59:36
● 2016-07-22 16:31:18
○ 2018-08-01 02:00:32
○ 2026-03-10 00:27:56

●A207.148.248.1432018-08-01 → 2026-03-10 · 3 obs

○ 2016-07-22 16:31:18
● 2018-08-01 02:00:32
● 2026-03-10 00:27:56

○A50.63.202.1042015-07-22 → 2015-07-22 · 4 obs

○ 2008-03-15 11:32:38
● 2015-07-22 22:18:52
○ 2015-11-20 07:59:36
○ 2026-03-10 00:27:56

○A67.199.7.152008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 11:32:38
○ 2015-07-22 22:18:52
○ 2026-03-10 00:27:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
smartgrading.com	ns.buydomains.com, this-domain-for-sale.com	2 records

✅ Authoritative Response

Server: 52.20.26.87

NS records: ns.buydomains.com, this-domain-for-sale.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smartgrading.com (unsigned zone)

⏱️ Timing

Total: 194ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.148.248.143`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)

Analysis

Hierarchy

The parent of www.smartgrading.com is smartgrading.com.

IP Addresses

smartgrading.com points to an IP address: 207.148.248.143.

other host names include track.friendsheart.com, eugo.net, wordbias.com, plusxl.com and mx45.couponwiz.com; they share IP numbers with smartgrading.com.

Name Servers

Two name servers this-domain-for-sale.com and ns.buydomains.com handle the delegation for smartgrading.com.

smartgrading.com shares the same name server setup as other domains, for instance nitespy.com, northernlighthouse.com, tydirect.com, learndiscipline.com and wellnesscoupons.com.

smartgrading.com shares name servers with other domains at least partially, for instance pdresearch.com, yucatantreasure.com, regionalhubs.com and bravaproperty.com.

Host names with a single IP

this-domain-for-sale.com points to 52.20.26.87

ns.buydomains.com points to 52.20.26.87

Host names that point to 52.20.26.87: this-domain-for-sale.com and ns.buydomains.com

smartgrading.com - robtex.com