textbookbee.com - robtex.com
textbookbee.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::ac43:a7d5🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::6815:221c🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.34.28Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.167.213🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | isaac.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3bb1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isaac.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1b1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | isaac.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21b1🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | isaac.ns.cloudflare.com | ||||||
| A | 108.162.193.177🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isaac.ns.cloudflare.com | ||||||
| A | 172.64.33.177🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isaac.ns.cloudflare.com | ||||||
| A | 173.245.59.177🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isaac.ns.cloudflare.com | ||||||
| NS | leia.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3ab8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | leia.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0b8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | leia.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20b8🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | leia.ns.cloudflare.com | ||||||
| A | 108.162.192.184🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | leia.ns.cloudflare.com | ||||||
| A | 172.64.32.184🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | leia.ns.cloudflare.com | ||||||
| A | 173.245.58.184🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | leia.ns.cloudflare.com | ||||||
| MX | smtp02.topdns.com ⭐ | ||||||
| A | 43.245.50.34🇺🇸 VR-HOSTED43.245.50.0/24 NetActuate, Inc | ||||||
| PTR | smtp02.topdns.com | ||||||
| MX | smtp03.topdns.com ⭐ | ||||||
| A | 185.40.234.25🇩🇪 VR-HOSTED185.40.234.0/24 NetActuate, Inc | ||||||
| PTR | smtp03.topdns.com | ||||||
| MX | smtp04.topdns.com ⭐ | ||||||
| A | 185.7.78.112🇳🇱 NFORCE185.7.78.0/24 Route object for 185.7.78.0/24 | ||||||
| PTR | smtp04.topdns.com | ||||||
| TXT | v=spf1 include:spf1.topdns.com include:spf2.topdns.com ?all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.34.28, 172.67.167.213 | ||||||
| IPv6 hints | 2606:4700:3032::ac43:a7d5, 2606:4700:3034::6815:221c | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=247, name=cloudflare-ech.com | ||||||
| SOA | isaac.ns.cloudflare.comdns@cloudflare.com serial=2409036349 | ||||||
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.netnstld@verisign-grs.com serial=1786397674 | ||||||
Same first word
textbookbee.com |
DNS History
9 records (9 active, 0 former)
●NSisaac.ns.cloudflare.com2026-08-06 → 2026-08-10 · 2 obs
● 2026-08-10 22:05:06
●NSleia.ns.cloudflare.com2026-08-06 → 2026-08-10 · 2 obs
● 2026-08-10 22:05:06
●MXsmtp02.topdns.com2026-08-06 → 2026-08-10 · 2 obs
● 2026-08-10 22:05:06
●MXsmtp03.topdns.com2026-08-06 → 2026-08-10 · 2 obs
● 2026-08-10 22:05:06
●MXsmtp04.topdns.com2026-08-06 → 2026-08-10 · 2 obs
● 2026-08-10 22:05:06
●A104.21.34.282026-08-06 → 2026-08-10 · 2 obs
● 2026-08-10 22:05:06
●A172.67.167.2132026-08-06 → 2026-08-10 · 2 obs
● 2026-08-10 22:05:06
●A2606:4700:3032::ac43:a7d52026-08-06 → 2026-08-10 · 2 obs
● 2026-08-10 22:05:06
●A2606:4700:3034::6815:221c2026-08-06 → 2026-08-10 · 2 obs
● 2026-08-10 22:05:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| textbookbee.com | isaac.ns.cloudflare.com, leia.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.192.184
NS records: isaac.ns.cloudflare.com, leia.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for textbookbee.com (unsigned zone)
⏱️ Timing
Total: 163ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.167.213, 104.21.34.28 |
| AAAA | 2 | 2606:4700:3032::ac43:a7d5, 2606:4700:3034::6815:221c |
| NS | 2 | isaac.ns.cloudflare.com, leia.ns.cloudflare.com |
| MX | 3 | smtp02.topdns.com (pri: 10), smtp03.topdns.com (pri: 10)... |
| TXT | 1 | v=spf1 include:spf1.topdns.com include:s |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | isaac.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (isaac.ns.cloudflare.com, isaac.ns.cloudflare.com, isaac.ns.cloudflare.com...)
Analysis
IP Addresses
textbookbee.com resolves to four IP addresses: 104.21.34.28, 172.67.167.213, 2606:4700:3032::ac43:a7d5 and 2606:4700:3034::6815:221c.
fd147-api5-control-plane80-routing-mesh-prd-az1.in.net, pp300(0x736578)tou.com, gdsz.123freebrushes.com plus two other host names have IP numbers in common with textbookbee.com.
Name Servers
Two name servers handle the delegation for textbookbee.com: isaac.ns.cloudflare.com and leia.ns.cloudflare.com.
The name server configuration of textbookbee.com is shared with other domains, for instance informasi-pendidikan.com, ibvallejo.com, newusa.us and two others.
textbookbee.com has at least partial name server overlap with other domains, such as apexquant.io, gooseket.jp, galgarcontabilidade.com.br and two others.
It is common to see these name servers used together with name servers osmar.ns.cloudflare.com and leo.ns.cloudflare.com.
Hosts with 6 IP addresses each:
isaac.ns.cloudflare.com resolves to 108.162.193.177, 172.64.33.177 and 173.245.59.177 among others, with 3 other IP addresses in total.
leia.ns.cloudflare.com resolves to 108.162.192.184, 172.64.32.184 and 173.245.58.184 among others, with 3 other IP addresses in total.
Mail Servers
textbookbee.com has three mail servers: smtp02.topdns.com, smtp03.topdns.com and smtp04.topdns.com.
At least some of the mail servers used by textbookbee.com are shared with other domains: vacmaster.com, eclipse-vpn.com, mmq.be and two others among them.
These mail servers tend to be used in combination with the mail servers smtp01.topdns.com and smtp09.topdns.com.
smtp02.topdns.com points to 43.245.50.34; smtp03.topdns.com points to 185.40.234.25; smtp04.topdns.com points to 185.7.78.112 — each hostname maps to exactly one IP address.