robertcollege.org - robtex.com
robertcollege.org
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ | ||||||
| NS | a2.org.afilias-nst.info | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1774652935 | ||||||
Subdomains
www.robertcollege.org |
Same first word
robertcollege.org |
robertcollege.k12.tr |
DNS History
12 records (7 active, 5 former)
●NSns01.robcol.k12.tr2020-01-31 → 2026-03-27 · 3 obs
● 2020-01-31 16:01:20
● 2026-03-27 23:40:36
●NSns02.robcol.k12.tr2026-02-19 → 2026-03-27 · 3 obs
● 2026-02-19 11:00:54
● 2026-03-27 23:40:36
○NSns65.domaincontrol.com2015-06-22 → 2016-07-06 · 4 obs
● 2016-07-06 12:09:44
○ 2017-03-19 13:35:30
○ 2026-03-27 23:40:36
○NSns66.domaincontrol.com2015-06-22 → 2016-07-06 · 4 obs
● 2016-07-06 12:09:44
○ 2017-03-19 13:35:30
○ 2026-03-27 23:40:36
●MXalt1.aspmx.l.google.com2020-01-31 → 2026-03-27 · 3 obs
● 2020-01-31 16:01:20
● 2026-03-27 23:40:36
●MXalt2.aspmx.l.google.com2020-01-31 → 2026-03-27 · 3 obs
● 2020-01-31 16:01:20
● 2026-03-27 23:40:36
●MXalt3.aspmx.l.google.com2020-01-31 → 2026-03-27 · 3 obs
● 2020-01-31 16:01:20
● 2026-03-27 23:40:36
●MXalt4.aspmx.l.google.com2020-01-31 → 2026-03-27 · 3 obs
● 2020-01-31 16:01:20
● 2026-03-27 23:40:36
●MXaspmx.l.google.com2020-01-31 → 2026-03-27 · 3 obs
● 2020-01-31 16:01:20
● 2026-03-27 23:40:36
○MXmailstore1.secureserver.net2015-06-22 → 2016-07-06 · 4 obs
● 2016-07-06 12:09:44
○ 2017-03-19 13:35:30
○ 2026-03-27 23:40:36
○MXsmtp.secureserver.net2015-06-22 → 2016-07-06 · 4 obs
● 2016-07-06 12:09:44
○ 2017-03-19 13:35:30
○ 2026-03-27 23:40:36
○A50.63.202.592015-06-22 → 2016-07-06 · 4 obs
● 2016-07-06 12:09:44
○ 2017-03-19 13:35:30
○ 2026-03-27 23:40:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| robertcollege.org | ns02.robcol.k12.tr, ns01.robcol.k12.tr | - |
✅ Authoritative Response
Server:91.216.170.3
NS records: ns02.robcol.k12.tr, ns01.robcol.k12.tr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for robertcollege.org (unsigned zone)
⏱️ Timing
Total: 787ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 1 | ns01.robcol.k12.tr |
| MX | 5 | alt4.aspmx.l.google.com (pri: 10), aspmx.l.google.com (pri: 1)... |
| TXT | 2 | google-site-verification=hA28Qfl_G7_IxYY, google-site-verification=jX8F9wC86YCUq4x |
| SOA | 1 | ns01.robcol.k12.tr hostmaster.robcol.k12 |
Analysis
Hierarchy
The parent of www.robertcollege.org is robertcollege.org.
Name Servers
robertcollege.org is delegated to two name servers: ns01.robcol.k12.tr and ns02.robcol.k12.tr.
robertcollege.org uses the same name server setup as other domains, such as 170.216.91.in-addr.arpa, robertcollege.k12.tr, robcol.k12.tr and rcintra.net.
robertcollege.org partially shares its name servers with other domains, for example robcol.org, arc.k12.tr and rc.k12.tr.
these name servers are commonly used together with the name servers ns01, ns01.arc.k12.tr, ns02.arc.k12.tr, ns01.rc.k12.tr and ns02.rc.k12.tr.
Host names with a single IP:
ns01.robcol.k12.tr points to 91.216.170.2.
ns02.robcol.k12.tr points to 91.216.170.3.
Mail Servers
Five mail servers handle robertcollege.org: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
robertcollege.org shares at least partially some mail servers with other domains, including ns500754.ns500754.ns500754.ns500671.ns500671.ns500671.ns500688.ns500671.ns500671.ns500671.ns500291.ns500649.lustychickser.com, lookinglink.info, ns500671.ns500754.ns500742.ns500704.ns500704.ns500671.ns500704.ns500678.ns500688.ns500678.ns500688.tenderladiesbz.com, ns500742.ns500754.ns500754.ns500754.ns500671.ns500704.ns500704.ns500688.ns500704.ns500678.ns500678.ns500671.lusty(0x736c7574)z.com and ns500699.ns500699.ns500699.ns500734.ns500693.ns500699.ns500699.ns500693.ns500699.ns500699.ns500588.ns500588.ns500699.ns500588.ns500699.ns500612.ns500602.dtrkdll.com.
these mail servers are often used together with aspmx2.googlemail.com, aspmx3.googlemail.com and aspmx4.googlemail.com.
Host names with two IP numbers:
Hostname aspmx.l.google.com points to 2607:f8b0:4004:c09::1b and 172.253.115.26.
Hostname alt1.aspmx.l.google.com points to 2607:f8b0:4023:2801::1a and 192.178.128.27.
Hostname alt2.aspmx.l.google.com points to 2607:f8b0:4023:1015::1b and 172.253.135.26.
Hostname alt3.aspmx.l.google.com points to 2607:f8b0:4023:3003::1b and 172.253.145.27.
Hostname alt4.aspmx.l.google.com points to 2607:f8b0:4003:c4a::1a and 142.251.96.26.