constructiveapps.com

constructiveapps.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.

41,460,241 other domains share an IP address with it.

The most recent crawl returned the page title “Constructive Apps · Free reference sites, each answering one kind of question well” and 14,881 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.com	Statistics for all domains we know under this TLD.
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	41,460,241	Number of domains with the same IP(s).

This data through the API

The data on this page is also available as JSON: /lookup for the key facts, /reverseip, /redirect and /similar for the lists, and /dnshistory with Basic and Premium. A free account comes with an API key and 100 calls a day.

curl -X POST https://api.webxtrend.com/v1.0/lookup \
  -H 'Content-Type: application/json' \
  -d '{"token": "YOUR_TOKEN", "query": "constructiveapps.com"}'

Create a free account Read the API docs

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Websites whose start page offers something similar, found by comparing the text of their start pages, across languages. Near-identical copies, parking pages and error pages are left out. The full list of up to 100 comes through the API: similar websites.

Last SSL certificate

Issuer	Google Trust Services
Valid from	9/30/2026
Valid to	12/29/2026
Time until expiry	72 days

Last successful crawl

Title	Constructive Apps · Free reference sites, each answering one kind of question well
Description	Constructive Apps LLC builds free reference sites that each answer one kind of question thoroughly, from checked sources. Free at the core, with no account.
Content-Length	14,881 bytes

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

DNS history

IPv4 address	Last updated
104.21.36.108	10/6/2026
172.67.192.149	10/6/2026
66.223.49.89	3/14/2026

IPv6 address	Last updated
2606:4700:3032:0:0:0:6815:246c	10/6/2026
2606:4700:3034:0:0:0:ac43:c095	10/6/2026

Mail server	Priority	Last updated
route2.mx.cloudflare.net	37	10/6/2026
route1.mx.cloudflare.net	72	10/6/2026
route3.mx.cloudflare.net	90	10/6/2026
mailserver.businessidentity.llc	10	3/14/2026

Name server	Last updated
dante.ns.cloudflare.com	10/6/2026
luciane.ns.cloudflare.com	10/6/2026
NS1.HOSTING.BUSINESSIDENTITY.LLC	3/14/2026
NS2.HOSTING.BUSINESSIDENTITY.LLC	3/14/2026

The five most recent states of each record type. The full history comes through the API: DNS history.

Most recent redirect domains

No domains found.

Reverse IP neighbours

188.114.96.3 10,407,772 domains · here since 10/9/2026

Domain	On this IP since
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzz.org	9/13/2026
zzzzzzzzum.icu	10/13/2026
zzzzzzzoes.site	10/16/2026
zzzzzzys.com	9/19/2026
zzzzzyl1.cn	10/14/2026
zzzzzwwwppodjfdkodkloq.com	9/28/2026
zzzzzssss55.online	9/16/2026
zzzzzssss55.buzz	9/20/2026
zzzzzsss77.online	9/20/2026
zzzzzssj.com	9/14/2026
zzzzzn.com	9/20/2026
and 10,407,759 more

188.114.97.3 10,407,772 domains · here since 10/9/2026

Domain	On this IP since
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzz.org	9/13/2026
zzzzzzzzum.icu	10/13/2026
zzzzzzzoes.site	10/16/2026
zzzzzzys.com	9/19/2026
zzzzzyl1.cn	10/14/2026
zzzzzwwwppodjfdkodkloq.com	9/28/2026
zzzzzssss55.online	9/16/2026
zzzzzssss55.buzz	9/20/2026
zzzzzsss77.online	9/20/2026
zzzzzssj.com	9/14/2026
zzzzzn.com	9/20/2026
and 10,407,759 more

2a06:98c1:3120::3 10,322,350 domains · here since 10/9/2026

Domain	On this IP since
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzum.icu	10/13/2026
zzzzzzzoes.site	10/16/2026
zzzzzzys.com	9/19/2026
zzzzzyl1.cn	10/14/2026
zzzzzwwwppodjfdkodkloq.com	9/28/2026
zzzzzssss55.online	9/16/2026
zzzzzssss55.buzz	9/20/2026
zzzzzsss77.online	9/20/2026
zzzzzssj.com	9/14/2026
zzzzzn.com	9/20/2026
zzzzz7777.com	9/17/2026
and 10,322,337 more

2a06:98c1:3121::3 10,322,347 domains · here since 10/9/2026

Domain	On this IP since
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzum.icu	10/13/2026
zzzzzzzoes.site	10/16/2026
zzzzzzys.com	9/19/2026
zzzzzyl1.cn	10/14/2026
zzzzzwwwppodjfdkodkloq.com	9/28/2026
zzzzzssss55.online	9/16/2026
zzzzzssss55.buzz	9/20/2026
zzzzzsss77.online	9/20/2026
zzzzzssj.com	9/14/2026
zzzzzn.com	9/20/2026
zzzzz7777.com	9/17/2026
and 10,322,334 more

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. The complete list of neighbours, also for an IP address, comes through the API: reverse IP lookup.

Dive into our data, search now!