courtesya.com - robtex.com
courtesya.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 104.18.11.62Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | dns21.hichina.com ⭐ | ||||||
| A | 2408:4009:501::29🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.40🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.60🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.200🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.220🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.40🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.60🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.100🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.110🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| NS | dns22.hichina.com | ||||||
| A | 2408:4009:501::30🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.38🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.61🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.198🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.222🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.38🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.61🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.98🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.108🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| MX | mail.courtesya.com ⭐ | ||||||
| TXT | v=spf1 ip4:47.254.92.90~all | ||||||
| SOA | dns21.hichina.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
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=1774627777 | ||||||
Same first word
courtesya.com |
Similar names
DNS History
4 records (4 active, 0 former)
●NSdns21.hichina.com2026-02-15 → 2026-03-27 · 2 obs
● 2026-03-27 16:11:02
●NSdns22.hichina.com2026-02-15 → 2026-03-27 · 2 obs
● 2026-03-27 16:11:02
●MXmail.courtesya.com2026-02-15 → 2026-03-27 · 2 obs
● 2026-03-27 16:11:02
●A104.18.11.622026-02-15 → 2026-03-27 · 2 obs
● 2026-03-27 16:11:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net... | - |
| courtesya.com | dns21.hichina.com, dns22.hichina.com | 18 records |
✅ Authoritative Response
Server:120.76.107.40
NS records: dns21.hichina.com, dns22.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courtesya.com (unsigned zone)
⏱️ Timing
Total: 3584ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 104.18.11.62 |
| NS | 2 | dns21.hichina.com, dns22.hichina.com |
| MX | 1 | mail.courtesya.com (pri: 1) |
| TXT | 1 | v=spf1 ip4:47.254.92.90~all |
| SOA | 1 | dns21.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns21.hichina.com, dns21.hichina.com, dns21.hichina.com...)
Analysis
IP Addresses
courtesya.com points to a single IP number: 104.18.11.62.
other host names for instance www.kindraze.com, backroundn.com, adroitsay.com, inexpensivy.com and www.havehug.com share IP numbers with courtesya.com.
Name Servers
courtesya.com is delegated to two name servers: dns21.hichina.com and dns22.hichina.com.
courtesya.com shares the same name server setup as other domains, for example bxc.net, lucklink.cn, liung.top, jlrg.net and zjgyzx.cn.
courtesya.com at least partially shares name servers with other domains, for instance gzzsjyw.com, qyouji.com, east100.cn, openeuro.com and 51buyticket.com.
These name servers are often used with expirens3.hichina.com and expirens4.hichina.com.
Host names with nine IP numbers:
dns21.hichina.com points to: 2408:4009:501::29, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110.
dns22.hichina.com points to: 2408:4009:501::30, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.
Mail Servers
courtesya.com is handled by a single mail server, mail.courtesya.com.