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382.3 M

Registered domains

9.2 M

New domains in the last 30 days

65.0 M

Social media profiles detected

ptr.do

ptr.do serves a website of its own. It answers on IPv4 only, with no TLS certificate and MX records for mail.

702 other domains share an IP address with it.

The most recent crawl returned the page title “ptrdo” and 4,808 bytes of HTML. The site links to LinkedIn. webXtrend first recorded it on .

Domain properties

Property Value Explanation
First seen 12/18/2014 Date the domain was first seen.
Has website yes A website is hosted under the domain, which does not redirect to an external domain.
Has MX-record yes The domain has an MX record.
External redirect no The domain redirects to another domain.
Redirect to https no The domain redirects to https.
Redirect to www. no The domain redirects to www.domain.
Only with www. no The domain can only be reached with the subdomain "www".
Only DNS, no website no There are no A or AAAA records in DNS.
IP-Address only IPv4 Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate no certificate Shows whether the domain has a valid SSL certificate.
Redirects 0 Number of domains that redirect to this domain.
Reverse IP 702 Number of domains with the same IP(s).

Detected social media networks

Last successful crawl

Title ptrdo
Description An enthusiastic proponent of well-designed engineering and well-engineered design.
Content-Length 4,808 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

Last SSL certificate

No certificate data available for this domain.

DNS history

IPv4 address Last updated
16.15.45.165 10/3/2026
16.15.45.85 10/3/2026
52.218.243.66 10/3/2026
52.92.163.51 10/3/2026
52.92.184.227 10/3/2026
Mail server Priority Last updated
inbound-smtp.us-west-2.amazonaws.com 10 1/3/2024
Name server Last updated
ns-1297.awsdns-34.org 12/8/2023
ns-1907.awsdns-46.co.uk 12/8/2023
ns-234.awsdns-29.com 12/8/2023
ns-961.awsdns-56.net 12/8/2023

Last 5 redirect domains

No domains found.

Reverse IP neighbours

3.5.84.235 170 domains · here since 9/30/2026
Domain On this IP since
zeimus.com 9/28/2026
ygdwygd.com 9/26/2026
will.is 9/28/2026
wicpcdb.org 9/22/2026
whitelotus.no 9/30/2026
werner.blog 10/2/2026
webdesignbyrosa.com 9/27/2026
walsh-group.net 9/29/2026
veggiecards.com 10/1/2026
uselessclass.com 10/2/2026
urolink.org 10/2/2026
thehiddenenemy.net 9/26/2026
and 157 more
16.15.39.56 167 domains · here since 9/30/2026
Domain On this IP since
zimbra.ai 9/30/2026
wwtech.io 9/25/2026
wisdomforeveryone.com 9/29/2026
wierdling.net 10/1/2026
whatsbeautiful.org 9/24/2026
weiwang314.com 10/2/2026
weiners.biz 9/28/2026
walsh-group.net 9/29/2026
wadeshearer.com 9/29/2026
volunteerhq.com 9/22/2026
vectranetworks.net 9/24/2026
uselessclass.com 10/2/2026
and 154 more
16.15.45.85 158 domains · here since 9/30/2026
Domain On this IP since
zentraltech.com 9/27/2026
zakrevskis.lt 9/29/2026
work4conomart.com 10/3/2026
wikidmobile.com 9/28/2026
website4md.com 9/28/2026
webfix.us 10/1/2026
webcreations.click 9/24/2026
viafoura-status.com 9/25/2026
valeapna.com 9/29/2026
tylerpower.io 10/1/2026
turok.co 9/30/2026
truckeeairport.net 9/26/2026
and 145 more
3.5.78.44 141 domains · here since 9/30/2026
Domain On this IP since
zenregs.net 9/25/2026
withgleam.com 9/28/2026
widestorm.com 9/28/2026
wickedwabbit.net 10/2/2026
whywhoopunite.com 10/1/2026
wandering-pickles.com 9/25/2026
virtualdpcdirectory.com 9/29/2026
vectranetworks.fr 9/24/2026
typset.io 10/2/2026
twoxar.com 10/3/2026
traxequestrian.com 9/28/2026
transfigurism.com 9/27/2026
and 128 more
52.218.168.194 21 domains · here since 9/30/2026
Domain On this IP since
zachcaldwell.com 9/15/2026
specialdistrict.org 10/2/2026
puregreenresources.com 9/25/2026
nw-fasteners.com 10/2/2026
nomis.co 10/1/2026
njcollectnwin.com 9/25/2026
luxuryzlo.com 9/25/2026
intelligenceforyourlife.com 9/24/2026
getgovly.com 9/23/2026
flowinh2o.com 9/23/2026
coramai-strategies.com 9/29/2026
compoundeyephotography.com 9/22/2026
and 8 more
52.92.235.235 19 domains · here since 9/30/2026
Domain On this IP since
vectranetworks.in 9/29/2026
summers.studio 9/25/2026
pundit.dog 9/26/2026
panoramaprenatal.us 9/22/2026
panoramaprenatal.com 9/29/2026
openshade.com 9/28/2026
nickhil-sethi.com 10/1/2026
mamatrancooks.com 9/24/2026
joshcogroup.com 9/30/2026
gfg2001.com 9/25/2026
geotetra.io 10/1/2026
dodo6502.com 9/25/2026
and 6 more
52.218.247.218 15 domains · here since 9/30/2026
Domain On this IP since
wilroplumbers.com 9/25/2026
voyage.band 9/30/2026
thebodyof9.com 9/29/2026
plowindustries.com 9/25/2026
photocoloringforkids.com 10/3/2026
isitfestiv.us 9/26/2026
droptalk.us 9/26/2026
dantran.net 9/24/2026
coramtechfocus.com 9/24/2026
coramopsportal.net 9/25/2026
coram-digitaltech.com 9/28/2026
cancerphylogenetics.org 10/2/2026
and 2 more
52.218.152.82 11 domains · here since 9/30/2026
Domain On this IP since
southernpineshospice.com 9/22/2026
papamurphysfranchises.com 9/30/2026
nt8k.com 10/2/2026
musictrackingradar.com 9/30/2026
marketskill.ca 9/21/2026
jrykowski.com 10/3/2026
fur-ends.com 9/23/2026
disbeliefstudio.info 9/27/2026
bluecanoelearning.net 9/27/2026
avant-gardeinthenow.com 9/25/2026
aliendogfear.com 9/28/2026

Sharing an address does not always mean sharing a server: on a CDN or a large hosting platform, millions of unrelated domains answer on the same few addresses. We measured how far that goes in Half the web sits on 276 IP addresses.