prep101.com - robtex.com
prep101.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 34.72.95.30🇺🇸 Google34.72.80.0/20 | ||||||
| PTR | 30.95.72.34.bc.googleusercontent.com | ||||||
| NS | ns25.domaincontrol.com ⭐ | ||||||
| A | 2603:5:2161::d🇺🇸 GODADDY-DNS2603:5:2160::/44 | ||||||
| PTR | ns25.domaincontrol.com | ||||||
| A | 97.74.102.13🇺🇸 GODADDY-DNS97.74.102.0/23 | ||||||
| PTR | ns25.domaincontrol.com | ||||||
| NS | ns26.domaincontrol.com | ||||||
| A | 2603:5:2261::d🇺🇸 GODADDY-DNS2603:5:2260::/44 | ||||||
| PTR | ns26.domaincontrol.com | ||||||
| A | 173.201.70.13🇺🇸 GODADDY-DNS173.201.70.0/23 | ||||||
| PTR | ns26.domaincontrol.com | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| A | 2607:f8b0:4004:c19::1b🇺🇸 Google2607:f8b0:4004::/48 | ||||||
| PTR | bk-in-f27.1e100.net | ||||||
| A | 172.253.62.27🇺🇸 Google172.253.62.0/24 | ||||||
| PTR | bc-in-f27.1e100.net | ||||||
| MX | alt1.aspmx.l.google.com(2) | ||||||
| A | 2607:f8b0:4003:c30::1b🇺🇸 Google2607:f8b0:4003::/48 | ||||||
| PTR | yutulis-in-f27.1e100.net | ||||||
| A | 74.125.27.26🇺🇸 Google74.125.27.0/24 | ||||||
| PTR | yutulis-in-f26.1e100.net | ||||||
| MX | alt2.aspmx.l.google.com(3) | ||||||
| A | 2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48 | ||||||
| PTR | yucbful-in-f26.1e100.net | ||||||
| A | 192.178.209.26🇺🇸 Google192.178.209.0/24 | ||||||
| PTR | yucbful-in-f26.1e100.net | ||||||
| MX | aspmx2.googlemail.com(4) | ||||||
| MX | aspmx3.googlemail.com(5) | ||||||
| A | 2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48 | ||||||
| PTR | yucbful-in-f26.1e100.net | ||||||
| A | 192.178.209.27🇺🇸 Google192.178.209.0/24 | ||||||
| TXT | pbc97hxt25w41zf0wg1synbm8dj26kcd | ||||||
| TXT | _qm3r3m91j7wfrg6ehckzt2q2d15i6r9 | ||||||
| TXT | google-site-verification=y2bNPn-tYQuwPdf00eRukPHg7PEP9C8Y7m9kCo54he8 | ||||||
| TXT | facebook-domain-verification=mw04dy2m8973tpliqg19dhf28vkgj0 | ||||||
| TXT | google-site-verification=oHh8ndE5lxuA7vcozccmdWWeMJNNEV80RBqYnuG_PeQ | ||||||
| TXT | google-site-verification=Nz2Hs3U2zrImkmiWap3joCUH0y-nL36YnJA8bJOCL2E | ||||||
| TXT | google-site-verification=TtKr19Vd-B1N2576TMnSNDEAF6YFk3n5VIdEEU26gz4 | ||||||
| TXT | google-site-verification=dwWtD9D8Kl3ecx48QQ4afiinvdxJSPY7QznO9lElENE | ||||||
| TXT | f7q50bj4im61up31pd85tnorkh | ||||||
| TXT | google-site-verification=BhqSmlhg2WnGSKZmbUjVhlhROAjUu8dUSFjwMjl-LUc | ||||||
| TXT | v=spf1 include:bmsend.com include:_spf.google.com include:_spf.act-on.net inc... | ||||||
| TXT | 13ct21x6hd9kxlz15ylf5hh48l4y9z3s | ||||||
| TXT | google-site-verification=aCrCViC34YZZua-DHyvkalGOAOk-NePPi_SLs0WXrvk | ||||||
| TXT | 63mj3mv91uo376m9ri7ggg1i2n | ||||||
| SOA | ns25.domaincontrol.comdns@jomax.net 2026-02-04 #0 | ||||||
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=1771291435 | ||||||
Subdomains
Same first word
prep101.com |
Similar names
DNS History
10 records (8 active, 2 former)
●NSns25.domaincontrol.com2015-08-02 → 2026-03-12 · 2 obs
● 2026-03-12 22:37:20
●NSns26.domaincontrol.com2015-08-02 → 2026-03-12 · 2 obs
● 2026-03-12 22:37:20
●MXalt1.aspmx.l.google.com2015-08-02 → 2026-03-12 · 2 obs
● 2026-03-12 22:37:20
●MXalt2.aspmx.l.google.com2015-08-02 → 2026-03-12 · 2 obs
● 2026-03-12 22:37:20
●MXaspmx.l.google.com2015-08-02 → 2026-03-12 · 2 obs
● 2026-03-12 22:37:20
●MXaspmx2.googlemail.com2015-08-02 → 2026-03-12 · 2 obs
● 2026-03-12 22:37:20
●MXaspmx3.googlemail.com2015-08-02 → 2026-03-12 · 2 obs
● 2026-03-12 22:37:20
○A104.197.122.2272017-02-13 → 2017-02-13 · 4 obs
● 2017-02-13 06:23:56
○ 2026-03-08 03:14:12
○ 2026-03-12 22:37:20
●A34.72.95.302026-03-08 → 2026-03-12 · 3 obs
● 2026-03-08 03:14:12
● 2026-03-12 22:37:20
○A67.213.76.1942015-08-02 → 2016-06-19 · 4 obs
● 2016-06-19 02:59:04
○ 2017-02-13 06:23:56
○ 2026-03-12 22:37:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| prep101.com | ns25.domaincontrol.com, ns26.domaincontrol.com | 4 records |
✅ Authoritative Response
Server: 173.201.70.13
NS records: ns25.domaincontrol.com, ns26.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for prep101.com (unsigned zone)
⏱️ Timing
Total: 1206ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 34.72.95.30 |
| NS | 2 | ns25.domaincontrol.com, ns26.domaincontrol.com |
| MX | 5 | alt1.aspmx.l.google.com (pri: 2), alt2.aspmx.l.google.com (pri: 3)... |
| TXT | 14 | pbc97hxt25w41zf0wg1synbm8dj26kcd, _qm3r3m91j7wfrg6ehckzt2q2d15i6r9... |
| SOA | 1 | ns25.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns25.domaincontrol.com, ns25.domaincontrol.com, ns26.domaincontrol.com...)
Analysis
Hierarchy
prep101.com is a parent of portal.prep101.com, mcat.prep101.com and www.prep101.com.
IP Addresses
prep101.com points to a single IP: 34.72.95.30.
Other host names, for instance 30.95.72.34.bc.googleusercontent.com, prep101mcat.wpengine.com and coursecram.com share IP numbers with prep101.com.
Name Servers
Two name servers ns25.domaincontrol.com and ns26.domaincontrol.com handle delegation for prep101.com.
prep101.com uses the same name server setup as other domains, for example parcpas.com, teesandmore.net, ppservicioclientepe.com, mickbox.com and diaryofanactress.com.
Host names with two IP numbers:
ns25.domaincontrol.com points to: 2603:5:2161::d and 97.74.102.13
ns26.domaincontrol.com points to: 2603:5:2261::d and 173.201.70.13
Mail Servers
Five mail servers handle prep101.com: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.
prep101.com shares some mail servers with other domains, at least partially, such as ns500759.ns500758.ns500759.ns500735.ns500736.ns500736.ns500735.ns500735.ns500698.ns500708.ns500708.ns500698.ns500708.ns500708.ns500652.trackreceptor.com, ns500699.ns500734.ns500699.ns500693.ns500693.ns500734.ns500734.ns500588.ns500699.ns500588.ns500588.ns500632.ns500588.ns500632.ns500632.ns500110.dtrkdll.com, ns500699.ns500693.ns500734.ns500699.ns500734.ns500699.ns500693.ns500588.ns500699.ns500588.ns500632.ns500612.ns500632.ns500632.ns500588.ns500578.ns500110.dtrkdll.com, ns500758.ns500759.ns500698.ns500759.ns500736.ns500698.ns500735.ns500735.ns500736.ns500698.ns500576.ns500698.ns500708.ns500576.ns500686.ns500576.ns500619.trackreceptor.com and bavaria-trans.com.ua.
These mail servers are often used with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Host names with two IP numbers:
aspmx3.googlemail.com points to: 2607:f8b0:4001:c70::1a and 192.178.209.27
aspmx.l.google.com points to: 2607:f8b0:4004:c19::1b and 172.253.62.27
alt1.aspmx.l.google.com points to: 2607:f8b0:4003:c30::1b and 74.125.27.26
alt2.aspmx.l.google.com points to: 2607:f8b0:4001:c70::1a and 192.178.209.26
Host names pointing to 2607:f8b0:4001:c70::1a: aspmx3.googlemail.com and alt2.aspmx.l.google.com