courseleaf.com - dns.ninja
courseleaf.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 12.2.169.165🇺🇸 AS1180612.2.169.0/24 | ||||||
| PTR | leepweb.leepfrog.com | ||||||
| NS | denali.leepfrog.com ⭐ | ||||||
| A | 12.2.169.23🇺🇸 AS1180612.2.169.0/24 | ||||||
| PTR | denali.leepfrog.com | ||||||
| NS | mojave.leepfrog.com | ||||||
| A | 12.2.169.37🇺🇸 AS1180612.2.169.0/24 | ||||||
| PTR | mojave.leepfrog.com | ||||||
| NS | ultrix.leepfrog.com | ||||||
| A | 52.89.61.229🇺🇸 Amazon52.88.0.0/15 EC2 PDX Prefix | ||||||
| PTR | ultrix.leepfrog.com | ||||||
| MX | shenandoah.leepfrog.com ⭐ | ||||||
| A | 12.2.169.198🇺🇸 AS1180612.2.169.0/24 | ||||||
| PTR | shenandoah.leepfrog.com | ||||||
| MX | wrangell.leepfrog.com(20) | ||||||
| A | 12.2.169.195🇺🇸 AS1180612.2.169.0/24 | ||||||
| PTR | wrangell.leepfrog.com | ||||||
| TXT | v=spf1 include:leepfrog.com include:spf.constantcontact.com a mx ~all | ||||||
| TXT | bw=hqzYgw9K13hurroOQdv8oJXMhnsF9Khpf3FpQHg92JZy | ||||||
| TXT | bw=7Yy2jgzP4vLzjSdonUXAw0QMaKx00AmDjXKVhCOMTNTG | ||||||
| TXT | 00Df4000001T5BM=1TBJw0000000Fv7 | ||||||
| SOA | denali.leepfrog.comhostmaster@leepfrog.com serial=202607210 | ||||||
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=1785131237 | ||||||
rank #102515 in the tld
📈 Tranco rank: #104,160
Subdomains
ccc-public.courseleaf.com |
colostate-public.courseleaf.com |
ewu-public.courseleaf.com |
ufl-public.courseleaf.com |
mit-public.courseleaf.com |
cambriancollege-public.courseleaf.com |
oaklandcc-public.courseleaf.com |
ufl-grad-public.courseleaf.com |
fairfield-public.courseleaf.com |
ucdenver-public.courseleaf.com |
jhu-curr.courseleaf.com |
auburn-public.courseleaf.com |
tamuc-next.courseleaf.com |
uconn-public.courseleaf.com |
oregonstate-fs.courseleaf.com |
lehigh-next.courseleaf.com |
gatech-public.courseleaf.com |
cpcc-curr.courseleaf.com |
uottawa-ca-public.courseleaf.com |
jccc-public.courseleaf.com |
lehigh-curr.courseleaf.com |
ua-public.courseleaf.com |
fitnyc-curr.courseleaf.com |
cmu-next.courseleaf.com |
ithaca-public.courseleaf.com |
temple-public.courseleaf.com |
illinois-public.courseleaf.com |
morrisville-public.courseleaf.com |
uvm-next.courseleaf.com |
tmcc-public.courseleaf.com |
valenciacollege-next.courseleaf.com |
ku-public.courseleaf.com |
yale-curr.courseleaf.com |
unc-public.courseleaf.com |
upenn-fs.courseleaf.com |
kctcs-public.courseleaf.com |
cwi-public.courseleaf.com |
uchicago-curr.courseleaf.com |
und-curr.courseleaf.com |
gwu-public.courseleaf.com |
calpoly-public.courseleaf.com |
clark-public.courseleaf.com |
lmu-public.courseleaf.com |
sfsu-public.courseleaf.com |
pcc-public.courseleaf.com |
tamuc-curr.courseleaf.com |
uoregon-curr.courseleaf.com |
valenciacollege-curr.courseleaf.com |
tamuc-public.courseleaf.com |
csus-public.courseleaf.com |
jhu-public.courseleaf.com |
stlcc-public.courseleaf.com |
lemoyne-public.courseleaf.com |
sunyempire-public.courseleaf.com |
utsa-next.courseleaf.com |
lamar-public.courseleaf.com |
drexel-public.courseleaf.com |
wcupa-next.courseleaf.com |
saintpeters-next.courseleaf.com |
wustl-curr.courseleaf.com |
tamu-public.courseleaf.com |
uab-public.courseleaf.com |
sanjac-public.courseleaf.com |
uwm-public.courseleaf.com |
mit-next.courseleaf.com |
ndsu-public.courseleaf.com |
wisc-public.courseleaf.com |
whitworth-next.courseleaf.com |
gwu-next.courseleaf.com |
valenciacollege-public.courseleaf.com |
yale-public.courseleaf.com |
uci-public.courseleaf.com |
daltonstate-next.courseleaf.com |
und-next.courseleaf.com |
erau-public.courseleaf.com |
shib.courseleaf.com |
oregonstate-public.courseleaf.com |
jhu-next.courseleaf.com |
vcu-public.courseleaf.com |
cornell-public.courseleaf.com |
columbia-public.courseleaf.com |
carleton-dev.courseleaf.com |
patchrepo.courseleaf.com |
uchicago-public.courseleaf.com |
tamuk-public.courseleaf.com |
psu-public.courseleaf.com |
tulane-public.courseleaf.com |
uark-public.courseleaf.com |
carleton-ca-next.courseleaf.com |
carleton-ca-public.courseleaf.com |
towson-public.courseleaf.com |
utexas-public.courseleaf.com |
und-public.courseleaf.com |
swdist.courseleaf.com |
whitworth-curr.courseleaf.com |
cmu-public.courseleaf.com |
msubillings-public.courseleaf.com |
fitnyc-next.courseleaf.com |
macewan-ca-public.courseleaf.com |
holycross-public.courseleaf.com |
uvm-curr.courseleaf.com |
uww-public.courseleaf.com |
daltonstate-curr.courseleaf.com |
www.courseleaf.com |
harvard-dce-fs.courseleaf.com |
cpcc-next.courseleaf.com |
uaa-alaska-next.courseleaf.com |
tarleton-curr.courseleaf.com |
csusb-public.courseleaf.com |
utsa-curr.courseleaf.com |
wcupa-public.courseleaf.com |
iastate-public.courseleaf.com |
txstate-public.courseleaf.com |
isu-public.courseleaf.com |
creighton-next.courseleaf.com |
tamucc-public.courseleaf.com |
wcupa-curr.courseleaf.com |
uic-public.courseleaf.com |
umt-public.courseleaf.com |
mines-curr.courseleaf.com |
uaa-alaska-public.courseleaf.com |
Same first word
courseleaf.com |
courseleaf.mx |
Similar names
lefousacre.com |
leafcourse.com |
sourceleaf.com |
foalrescue.com |
rosecefalu.com |
leafsource.com |
elfasource.com |
leafsource.ca |
DNS History
7 records (6 active, 1 former)
●NSdenali.leepfrog.com2015-08-02 → 2026-07-27 · 2 obs
● 2026-07-27 06:00:12
●NSmojave.leepfrog.com2015-08-02 → 2026-07-27 · 2 obs
● 2026-07-27 06:00:12
○NSsysv.leepfrog.com2015-08-02 → 2015-11-21 · 4 obs
● 2015-11-21 10:38:40
○ 2016-01-27 05:20:36
○ 2026-07-27 06:00:12
●NSultrix.leepfrog.com2016-01-27 → 2026-07-27 · 3 obs
● 2016-01-27 05:20:36
● 2026-07-27 06:00:12
●MXshenandoah.leepfrog.com2015-08-02 → 2026-07-27 · 2 obs
● 2026-07-27 06:00:12
●MXwrangell.leepfrog.com2015-08-02 → 2026-07-27 · 2 obs
● 2026-07-27 06:00:12
●A12.2.169.1652015-08-02 → 2026-07-27 · 2 obs
● 2026-07-27 06:00:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| courseleaf.com | denali.leepfrog.com, mojave.leepfrog.com, ultrix.leepfrog.com | 3 records |
✅ Authoritative Response
Server:12.2.169.23
NS records: denali.leepfrog.com, mojave.leepfrog.com, ultrix.leepfrog.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courseleaf.com (unsigned zone)
⏱️ Timing
Total: 233ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 12.2.169.165 |
| NS | 3 | ultrix.leepfrog.com, denali.leepfrog.com... |
| MX | 2 | wrangell.leepfrog.com (pri: 20), shenandoah.leepfrog.com (pri: 10) |
| TXT | 4 | 00Df4000001T5BM=1TBJw0000000Fv7, v=spf1 include:leepfrog.com include:spf.... |
| SOA | 1 | denali.leepfrog.com hostmaster.leepfrog. |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (denali.leepfrog.com, mojave.leepfrog.com, ultrix.leepfrog.com)
Analysis
Hierarchy
Under courseleaf.com as parent sit ccc-public.courseleaf.com, colostate-public.courseleaf.com, ewu-public.courseleaf.com, ufl-public.courseleaf.com, mit-public.courseleaf.com and hundreds of other host names.
IP Addresses
courseleaf.com directs to one IP number, which is 12.2.169.165.
Among the host names that share IP numbers with courseleaf.com are www.courseleaf.com, leepweb.leepfrog.com, leepfrog.com and two others.
Name Servers
courseleaf.com has three name servers — denali.leepfrog.com, mojave.leepfrog.com and ultrix.leepfrog.com.
courseleaf.com partially shares its NS delegation with several other domains, including leepfrog.com, noshame.org, sitelegend.com and two others.
These name servers often co-occur with the name servers redwood.leepfrog.com.
Each of the three hostnames points to exactly one IP address: denali.leepfrog.com points to 12.2.169.23, mojave.leepfrog.com points to 12.2.169.37 and ultrix.leepfrog.com points to 52.89.61.229.
Mail Servers
The MX records for courseleaf.com point to two mail servers: shenandoah.leepfrog.com and wrangell.leepfrog.com.
courseleaf.com has the same MX record configuration as other domains, including netfrog.com, mojave.leepfrog.com and leepfrog.com.
shenandoah.leepfrog.com resolves to 12.2.169.198. wrangell.leepfrog.com resolves to 12.2.169.195. Both host names point to a single IP number.