sfoptimizer.com - robtex.com
sfoptimizer.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 74.205.59.138🇺🇸 RACKSPACE-DFW74.205.32.0/19 Rackspace Managed Hosting, 9725 Data point drive, Suite 100, San Antonio, TX 78229 | ||||||
| PTR | 118854-web1.forcelogix.com | ||||||
| NS | ns1.sap.net ⭐ | ||||||
| A | 193.46.3.53🇫🇷 SAP_AC193.46.3.0/24 SAP SE SAP Anycast | ||||||
| PTR | ns1.sap.net | ||||||
| NS | ns2.sap.de | ||||||
| A | 2a01:5b0:12::7🇩🇪 KNIPP-AMS-AS2a01:5b0:12::/47 KNIPP-IRONDNS5 | ||||||
| PTR | ns2.sap.de | ||||||
| A | 195.253.90.7🇩🇪 KNIPP-AMS-AS195.253.90.0/23 KNIPP-IRONDNS5 | ||||||
| PTR | ns2.sap.de | ||||||
| NS | ns3.sap.com | ||||||
| A | 2607:fae0:f00d::72🇺🇸 BIND2607:fae0:f00d::/48 Vultr Customer Route | ||||||
| PTR | ns3.sap.com | ||||||
| A | 67.221.252.72🇺🇸 STEFFANN-DC-AS67.221.252.0/24 Vultr Customer Route | ||||||
| PTR | ns3.sap.com | ||||||
| NS | ns4.sap.asia | ||||||
| A | 169.145.112.153🇺🇸 SAP_AC169.145.112.0/24 SAP SE Core DNS | ||||||
| PTR | ns4.sap.asia | ||||||
| TXT | v=spf1 include:mailgun.org ~all | ||||||
| SOA | ns1.sap.netdns@sap-ag.de 2023-03-06 #16 | ||||||
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=1774965892 | ||||||
Subdomains
www.sfoptimizer.com |
Same first word
sfoptimizer.com |
DNS History
9 records (5 active, 4 former)
●NSns1.sap.net2026-03-27 → 2026-03-31 · 3 obs
● 2026-03-27 09:59:22
● 2026-03-31 14:05:52
●NSns2.sap.de2026-03-27 → 2026-03-31 · 3 obs
● 2026-03-27 09:59:22
● 2026-03-31 14:05:52
●NSns3.sap.com2026-03-27 → 2026-03-31 · 3 obs
● 2026-03-27 09:59:22
● 2026-03-31 14:05:52
●NSns4.sap.asia2026-03-27 → 2026-03-31 · 3 obs
● 2026-03-27 09:59:22
● 2026-03-31 14:05:52
○NSns61.domaincontrol.com2015-06-29 → 2017-04-01 · 4 obs
● 2017-04-01 23:50:20
○ 2026-03-27 09:59:22
○ 2026-03-31 14:05:52
○NSns62.domaincontrol.com2015-06-29 → 2017-04-01 · 4 obs
● 2017-04-01 23:50:20
○ 2026-03-27 09:59:22
○ 2026-03-31 14:05:52
○MXmailstore1.secureserver.net2015-06-29 → 2017-04-01 · 4 obs
● 2017-04-01 23:50:20
○ 2026-03-27 09:59:22
○ 2026-03-31 14:05:52
○MXsmtp.secureserver.net2015-06-29 → 2017-04-01 · 4 obs
● 2017-04-01 23:50:20
○ 2026-03-27 09:59:22
○ 2026-03-31 14:05:52
●A74.205.59.1382015-06-29 → 2026-03-31 · 2 obs
● 2026-03-31 14:05:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net... | - |
| sfoptimizer.com | ns2.sap.de, ns3.sap.com, ns4.sap.asia, ns1.sap.net | 2 records |
✅ Authoritative Response
Server:67.221.252.72
NS records: ns2.sap.de, ns3.sap.com, ns4.sap.asia, ns1.sap.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sfoptimizer.com (unsigned zone)
⏱️ Timing
Total: 850ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 74.205.59.138 |
| NS | 4 | ns4.sap.asia, ns3.sap.com... |
| TXT | 1 | v=spf1 include:mailgun.org ~all |
| SOA | 1 | ns1.sap.net dns.sap-ag.de |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns3.sap.com, ns3.sap.com)
Analysis
Hierarchy
sfoptimizer.com is the parent of www.sfoptimizer.com.
IP Addresses
sfoptimizer.com resolves to one IP number: 74.205.59.138.
Name Servers
sfoptimizer.com is delegated to four name servers: ns4.sap.asia, ns3.sap.com, ns2.sap.de and ns1.sap.net.
sfoptimizer.com at least partially shares name servers with other domains, for instance crystaldecisions.com, sapappsdevelopmentpartnercenter.com, sapstore.us, 0.145.169.in-addr.arpa and sybase.nl.
These name servers are commonly used with ns.sap-ag.de, ns4.sap-ag.de, ns5.sap.com, ns3.sap-ag.de and ns2.sap-ag.de.
Host names with two IP numbers:
ns3.sap.com points to 2607:fae0:f00d::72 and 67.221.252.72; ns2.sap.de points to 2a01:5b0:12::7 and 195.253.90.7.
Host names with one IP number:
ns4.sap.asia points to 169.145.112.153; ns1.sap.net points to 193.46.3.53.