questionforge.app

questionforge.app serves a website of its own over HTTPS. It answers on both IPv4 and IPv6, with a valid TLS certificate.

4,077 other domains share an IP address with it.

The most recent crawl returned the page title “QuestionForge” and 81,346 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.app	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	no	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	4,077	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": "questionforge.app"}'

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	8/12/2026
Valid to	11/10/2026
Time until expiry	24 days

Last successful crawl

Title	QuestionForge
Description	QuestionForge helps teachers, trainers, and exam-prep creators convert PDFs, presentations, documents, pasted text, and URLs into export-ready quizzes, flashcards, study guides, and practice exams.
Content-Length	81,346 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
104.21.8.46	6/23/2026
172.67.156.214	6/23/2026

IPv6 address	Last updated
2606:4700:3036:0:0:0:6815:82e	7/2/2026
2606:4700:3037:0:0:0:ac43:9cd6	7/2/2026
2606:4700:3031:0:0:0:ac43:9cd6	6/23/2026
2606:4700:3033:0:0:0:6815:82e	6/23/2026

Name server	Last updated
hank.ns.cloudflare.com	6/23/2026
shaz.ns.cloudflare.com	6/23/2026

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

172.67.156.214 1,026 domains · here since 9/12/2026

Domain	On this IP since
zywangui.com	9/12/2026
zjslxd.net	9/18/2026
zipaviloo.com	9/19/2026
zinitt.com	9/21/2026
zhongxingyu.cn	9/13/2026
zhilongmiaomu.com	10/5/2026
zhilibyli.com	9/19/2026
zhihuiyunban.cyou	9/21/2026
zerorezidaho.com	9/15/2026
zephira.uk	9/20/2026
zcenptd.xyz	10/10/2026
zbahisgirisi.cam	9/16/2026
and 1,013 more

104.21.8.46 1,025 domains · here since 9/12/2026

Domain	On this IP since
zywangui.com	9/12/2026
zjslxd.net	9/18/2026
zipaviloo.com	9/19/2026
zinitt.com	9/21/2026
zhongxingyu.cn	9/13/2026
zhilongmiaomu.com	10/5/2026
zhilibyli.com	9/19/2026
zhihuiyunban.cyou	9/21/2026
zerorezidaho.com	9/15/2026
zephira.uk	9/20/2026
zcenptd.xyz	10/10/2026
zbahisgirisi.cam	9/16/2026
and 1,012 more

2606:4700:3036::6815:82e 1,013 domains · here since 9/12/2026

Domain	On this IP since
zywangui.com	9/12/2026
zjslxd.net	9/18/2026
zipaviloo.com	9/19/2026
zinitt.com	9/21/2026
zhongxingyu.cn	9/13/2026
zhilongmiaomu.com	9/12/2026
zhilibyli.com	9/19/2026
zhihuiyunban.cyou	9/21/2026
zerorezidaho.com	9/15/2026
zephira.uk	9/20/2026
zcenptd.xyz	10/10/2026
zbahisgirisi.cam	9/16/2026
and 1,000 more

2606:4700:3037::ac43:9cd6 1,013 domains · here since 9/12/2026

Domain	On this IP since
zywangui.com	9/12/2026
zjslxd.net	9/18/2026
zipaviloo.com	9/19/2026
zinitt.com	9/21/2026
zhongxingyu.cn	9/13/2026
zhilongmiaomu.com	9/12/2026
zhilibyli.com	9/19/2026
zhihuiyunban.cyou	9/21/2026
zerorezidaho.com	9/15/2026
zephira.uk	9/20/2026
zcenptd.xyz	10/10/2026
zbahisgirisi.cam	9/16/2026
and 1,000 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!