feyn.app

feyn.app serves a website of its own over HTTPS and under www. It answers on IPv4 only, with a valid TLS certificate and MX records for mail.

378,777 other domains share an IP address with it.

The most recent crawl returned the page title “Feyn - The Best iOS Flashcards App” and 18,370 bytes of HTML. The site links to Instagram.

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	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.	yes	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	valid	Shows whether the domain has a valid SSL certificate.
Redirects	0	Number of domains that redirect to this domain.
Reverse IP	378,777	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": "feyn.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	8/10/2026
Valid to	11/8/2026
Time until expiry	20 days

Last successful crawl

Title	Feyn - The Best iOS Flashcards App
Description	Create flashcards on your iPad. Study them on your iPhone using spaced repetition. Fully featured editor with support for drawing, images and text. Native support for Apple Pencil. The best flashcards app for iPad and iPhone.
Content-Length	18,370 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
198.202.211.1	10/26/2025
75.2.70.75	3/13/2024
99.83.190.102	3/13/2024

Mail server	Priority	Last updated
fwd1.porkbun.com	1	3/4/2024
fwd2.porkbun.com	1	3/4/2024
fwd1.porkbun.com	10	2/29/2024
fwd2.porkbun.com	20	2/29/2024
aspmx.l.google.com	1	2/20/2024

Name server	Last updated
curitiba.ns.porkbun.com	2/29/2024
fortaleza.ns.porkbun.com	2/29/2024
maceio.ns.porkbun.com	2/29/2024
salvador.ns.porkbun.com	2/29/2024
ns-cloud-d1.googledomains.com	2/20/2024

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

198.202.211.1 378,777 domains · here since 9/17/2026

Domain	On this IP since
zzzzip.com	9/13/2026
zzzsheep.com	10/13/2026
zzlocal.com	9/23/2026
zzkontra.pl	9/14/2026
zzim.com.au	9/23/2026
zziin.nl	9/18/2026
zziani.com	9/22/2026
zzhelev.com	9/14/2026
zzgripelectric.com	9/23/2026
zzbgrou.nl	9/21/2026
zz2.co.za	9/16/2026
zz2.biz	9/17/2026
and 378,764 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!