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382.5 M

Registered domains

9.1 M

New domains in the last 30 days

64.6 M

Social media profiles detected

postgrantreview.com

postgrantreview.com serves a website of its own over HTTPS. It answers on both IPv4 and IPv6, with a valid TLS certificate and MX records for mail.

69 other domains share an IP address with it.

The most recent crawl returned the page title “POSTGRANTREVIEW.COM — The inventor's last best hope to fix things when the USPTO screws up.” and 27,243 bytes of HTML. The site links to LinkedIn.

Domain properties

Property Value Explanation
First seen unknown 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 yes 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 Both Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate valid Shows whether the domain has a valid SSL certificate.
Redirects 0 Number of domains that redirect to this domain.
Reverse IP 69 Number of domains with the same IP(s).

Detected social media networks

Last successful crawl

Title POSTGRANTREVIEW.COM — The inventor's last best hope to fix things when the USPTO screws up.
Description A first-person, illustrated account of prosecuting a Post Grant Review (PGR) at the USPTO — and the abusive practices in the US innovation economy that made it necessary.
Content-Length 27,243 bytes

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

Last SSL certificate

Issuer Amazon
Valid from 7/4/2026
Valid to 1/18/2027
Time until expiry 104 days

DNS history

IPv4 address Last updated
143.204.181.108 10/3/2026
143.204.181.41 10/3/2026
143.204.181.65 10/3/2026
143.204.181.68 10/3/2026
18.239.105.2 9/24/2026
IPv6 address Last updated
2600:9000:20f1:1a00:1c:5291:4400:93a1 10/3/2026
2600:9000:20f1:5000:1c:5291:4400:93a1 10/3/2026
2600:9000:20f1:8600:1c:5291:4400:93a1 10/3/2026
2600:9000:20f1:9000:1c:5291:4400:93a1 10/3/2026
2600:9000:20f1:9400:1c:5291:4400:93a1 10/3/2026
Mail server Priority Last updated
route1.mx.cloudflare.net 8 6/24/2026
route2.mx.cloudflare.net 10 6/24/2026
route3.mx.cloudflare.net 43 6/24/2026
inbound-smtp.us-west-2.amazonaws.com 10 5/30/2026
inbound.postmarkapp.com 15 5/30/2026
Name server Last updated
chan.ns.cloudflare.com 5/30/2026
nitin.ns.cloudflare.com 5/30/2026

Last 5 redirect domains

No domains found.

Reverse IP neighbours

99.84.91.127 23 domains · here since 9/27/2026
Domain On this IP since
we-ed.wien 9/19/2026
uribun.com 10/5/2026
topbettingtip.co.uk 9/27/2026
team-roschitz.at 9/16/2026
sbsfood.co.kr 9/25/2026
savingscollaborative.org 9/24/2026
productfruit.com 9/28/2026
mibone.co.kr 9/30/2026
mbgbusiness.in 9/29/2026
liderespro.co 9/29/2026
idsjmk.cz 9/26/2026
happydragontracy.com 9/28/2026
and 10 more
99.84.91.7 15 domains · here since 9/27/2026
Domain On this IP since
savingscollaborative.org 9/24/2026
mlconstruir.com.ar 9/30/2026
kindicare.com 9/27/2026
idforkobe.com 9/30/2026
forestfilm.co.kr 9/28/2026
flodstudio.com 9/25/2026
dipart.sk 9/17/2026
cottage-kr.com 9/25/2026
cotemaison.kr 9/25/2026
coexchange.net 9/26/2026
chargeme.online 9/12/2026
azdefensivedrivingskills.com 9/29/2026
and 2 more
99.84.91.53 12 domains · here since 9/27/2026
Domain On this IP since
stpaulsocorronm.org 9/29/2026
saharalights-tours.com 9/20/2026
rscapefuneraldirectors.co.uk 9/30/2026
royanlee.com 10/4/2026
pitstop.rs 9/29/2026
magicgoldslotbr.vip 10/2/2026
idinc.co.kr 9/17/2026
dokode.top 9/30/2026
chuanshabutogo.com 9/27/2026
calmjoyzone.com 9/30/2026
and 1 more
99.84.91.124 11 domains · here since 9/27/2026
Domain On this IP since
wavycoffee.com 9/28/2026
vinaybaburao.com 9/28/2026
powerwellnessgroup.com 9/25/2026
lucyikeji.com 10/1/2026
jbjwsteel.com 9/28/2026
himleyvillage.app 9/23/2026
curatedcolumns.com 9/30/2026
co-operative-funeral.net 10/1/2026
blueoceanventure.xyz 9/29/2026
acuriousthinhub.org 9/27/2026
2600:9000:20c3:2600:1c:5291:4400:93a1 1 domain · here since 9/27/2026
Domain On this IP since
No other domains on this address.
2600:9000:20c3:2e00:1c:5291:4400:93a1 1 domain · here since 9/27/2026
Domain On this IP since
No other domains on this address.
2600:9000:20c3:3e00:1c:5291:4400:93a1 1 domain · here since 9/27/2026
Domain On this IP since
No other domains on this address.
2600:9000:20c3:5a00:1c:5291:4400:93a1 1 domain · here since 9/27/2026
Domain On this IP since
No other domains on this address.
2600:9000:20c3:7800:1c:5291:4400:93a1 1 domain · here since 9/27/2026
Domain On this IP since
No other domains on this address.
2600:9000:20c3:8400:1c:5291:4400:93a1 1 domain · here since 9/27/2026
Domain On this IP since
No other domains on this address.

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.