`teacherrecord.com`

CNAME	`teacherrecord.com.cdn.cloudflare.net`
DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3030::ac43:b01c^{🇺🇸 Cloudflare} ✓ In HTTPS hints
A	2606:4700:3037::6815:381f^{🇺🇸 Cloudflare} ✓ In HTTPS hints
A	104.21.56.31^Cloudflare ✓ In HTTPS hints
A	172.67.176.28^{🇺🇸 Cloudflare} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.56.31, 172.67.176.28
		IPv6	2606:4700:3030::ac43:b01c, 2606:4700:3037::6815:381f

`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

📈 Tranco rank: #185,803

Up

cdn-cn.teacherrecord.com

Same first word

teacherrecord.com

DNS History

8 records (5 active, 3 former)

●NSdns21.hichina.com2026-02-17 → 2026-02-23 · 3 obs

○ 2017-11-24 16:03:42
● 2026-02-17 21:33:40
● 2026-02-23 16:13:24

●NSdns22.hichina.com2026-02-17 → 2026-02-23 · 3 obs

○ 2017-11-24 16:03:42
● 2026-02-17 21:33:40
● 2026-02-23 16:13:24

○NSns75.domaincontrol.com2017-11-24 → 2017-11-24 · 3 obs

● 2017-11-24 16:03:42
○ 2026-02-17 21:33:40
○ 2026-02-23 16:13:24

○NSns76.domaincontrol.com2017-11-24 → 2017-11-24 · 3 obs

● 2017-11-24 16:03:42
○ 2026-02-17 21:33:40
○ 2026-02-23 16:13:24

●MXmxn.mxhichina.com2026-02-17 → 2026-02-23 · 2 obs

● 2026-02-17 21:33:40
● 2026-02-23 16:13:24

●MXmxw.mxhichina.com2026-02-17 → 2026-02-23 · 2 obs

● 2026-02-17 21:33:40
● 2026-02-23 16:13:24

○A50.63.202.342017-11-24 → 2017-11-24 · 3 obs

● 2017-11-24 16:03:42
○ 2026-02-17 21:33:40
○ 2026-02-23 16:13:24

●CNAMEteacherrecord.com.cdn.cloudflare.net2026-02-17 → 2026-02-23 · 2 obs

● 2026-02-17 21:33:40
● 2026-02-23 16:13:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
teacherrecord.com	dns21.hichina.com, dns22.hichina.com	-

✅ Authoritative Response

Server: 120.76.107.38

NS records: dns21.hichina.com, dns22.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teacherrecord.com (unsigned zone)

⏱️ Timing

Total: 496ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns21.hichina.com, dns22.hichina.com`
MX	2	`mxw.mxhichina.com (pri: 10), mxn.mxhichina.com (pri: 5)`
TXT	1	`v=spf1 include:spf.qiye.aliyun.com inclu`
CNAME	1	`teacherrecord.com.cdn.cloudflare.net`
SOA	1	`dns21.hichina.com hostmaster.hichina.com`

AI analysis

teacherrecord.com is the parent of cdn-cn.teacherrecord.com.

Four IP numbers are pointed to by teacherrecord.com: 2606:4700:3030::ac43:b01c, 2606:4700:3037::6815:381f, 104.21.56.31 and 172.67.176.28.

other host names including plumflower.com.cn, wwtaylorw.com, biocompete.com, amalpack.com and theantisocialengineer.com share IP numbers with teacherrecord.com.

teacherrecord.com - robtex.com