readfast.app

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

2,856,729 other domains share an IP address with it.

The most recent crawl returned the page title “ReadFast — Speed Reading App | Improve Reading Speed & Comprehension” and 70,794 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	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	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	2,856,729	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": "readfast.app"}'

Create a free account Read the API docs

Similar websites

Website	Similarity
velociread.com VelociRead – Speed Reading Reimagined Improve your reading speed with RSVP technology. Adjust your WPM in real-time while reading.	90 %
focalread.com FocalRead: Speed Reading App for iOS & Android Read PDFs, EPUBs and web articles one word at a time. Adjust your pace and try a reading speed test with FocalRead for iPhone, iPad and Android.	89 %
flash-read.com Flash-Read RSVP - Speed Reading App Free \| Read 3x Faster Master RSVP speed reading for free. Read 3x faster with Flash-Read's gamified speed reading app. 500+ built-in stories, achievements, streaks. No signup requ...	89 %
speedmind.app Speed Reading App \| SpeedMind	89 %
devourreading.com Devour - Speed Read Articles, Books & Documents at 500+ WPM Free speed reading app that helps you read 2-3x faster. Use RSVP technology to devour articles, books, and documents at 500+ WPM. No signup required. Works i...	89 %
readrrr.app Free Online Speed Reader (RSVP) & Reading Speed Test \| readrrr Free online speed reader. Paste any text or open a PDF and read it with RSVP at 100 to 1,000 words per minute. Test your reading speed. Free iPhone app for b...	88 %
boxcarapps.com BookMark \| Reading, effortless. BookMark is a speed reading app for iOS. Read the news in half the time. Train your brain with exercises designed to increase reading speed while maintaining...	87 %
readingphenom.com Read 300-500% Faster with Better Comprehension - Reading Phenom Read 300-500% faster with better comprehension. Reading Phenom helps you build real reading speed that sticks.	87 %
readfasterin30days.com Rellune — Speed Reading App to Read Faster Learn how to read faster with Rellune, the speed reading training app. Free WPM test, RSVP drills, chunk reading, and comprehension scoring — used by 100k+ r...	87 %
vortexread.com VortexRead — Free Speed Reading App \| Read Faster Online at 900 WPM Free online speed reading app. Learn how to read faster with RSVP — paste any text, books, or PDFs and read up to 1200 WPM. No signup, no install, 100% private.	87 %
boltread.com BoltRead – Free RSVP Speed Reading App Read 2–3x faster with BoltRead's free RSVP speed reader. Paste any text or upload an EPUB and start speed reading instantly. No signup required.	86 %
turboread.app Turbo Read - Speed Reading App \| Fast Reader & RSVP Technology for 3x Faster Reading Turbo Read is the #1 speed reading app and fast reader using RSVP technology. Read 3x faster—upload PDFs, EPUBs & documents. Increase reading speed to 600-12...	86 %
wpmreader.com WPM Reader - Read Faster, Learn More WPM Reader uses RSVP and a steady focal letter so you read faster with less eye strain. Library, progress, and focus in one place.	86 %
blitzread.ai BlitzRead \| Absorb anything. At any speed. RSVP-powered speed reading that adapts to you. Read 2-3x faster while maintaining comprehension. Free to start.	86 %
lightspeedread.com LightSpeedRead — Speed Reading Tool (RSVP) \| Read Faster Online Free online speed reading tool. Paste text or a link and read one word at a time with the RSVP method — adjustable words-per-minute, fullscreen focus mode, d...	85 %
warpreader.com Warpreader — Read 3× Faster. Miss Nothing. RSVP speed reading with AI comprehension coaching. Read faster, retain more. Free, web-based, no download required.	85 %
thinkfastandslow.com ThinkFastAndSlow - Speed Reading & Focus Training Master speed reading with RSVP and Bionic Reading modes. Train your focus, read faster, and absorb more knowledge.	85 %
swiftread.app Warpreader — Read 3× Faster. Miss Nothing. RSVP speed reading with AI comprehension coaching. Read faster, retain more. Free, web-based, no download required.	85 %
readfaster.app ReadFaster - Read 3x Faster Today Read and learn at rocket speed. Access your library seamlessly across our mobile app and web platform.	85 %
readceleris.app Celeris Reading — Read Faster. Retain More. Celeris is a speed reading app that trains you to read 2x, 3x, even 5x faster while retaining more of what you read.	85 %

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	Let's Encrypt
Valid from	8/6/2026
Valid to	11/4/2026
Time until expiry	21 days

Last successful crawl

Title	ReadFast — Speed Reading App \| Improve Reading Speed & Comprehension
Description	Improve your reading speed from 200 to 600+ WPM. ReadFast replaces skimming with RSVP technology — boosting reading comprehension so you get through books, PDFs, and articles 3× faster. Free reading app for iOS & Android.
Content-Length	70,794 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
185.199.108.153	4/11/2026
185.199.109.153	4/11/2026
185.199.110.153	4/11/2026
185.199.111.153	4/11/2026
13.248.213.45	1/29/2026

Mail server	Priority	Last updated
mx1.privateemail.com	10	4/11/2026
mx2.privateemail.com	10	4/11/2026

Name server	Last updated
dns1.registrar-servers.com	4/11/2026
dns2.registrar-servers.com	4/11/2026
ns69.domaincontrol.com	1/21/2025
ns70.domaincontrol.com	1/21/2025
ns-cloud-b1.googledomains.com	12/9/2023

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

185.199.108.153 737,955 domains · here since 9/16/2026

Domain	On this IP since
zzzzsky.com	9/23/2026
zzzzquan.cn	9/18/2026
zzzzjuttzone.site	9/14/2026
zzzyss.top	9/18/2026
zzzstrongtea.com	9/21/2026
zzzppplll.cn	9/22/2026
zzzpband.com	9/16/2026
zzzoo.app	9/23/2026
zzzmisa.com	9/16/2026
zzzm.online	9/13/2026
zzzionline.com	9/20/2026
zzzhz.games	9/19/2026
and 737,942 more

185.199.109.153 709,881 domains · here since 9/16/2026

Domain	On this IP since
zzzzsky.com	9/23/2026
zzzzquan.cn	9/18/2026
zzzzjuttzone.site	9/14/2026
zzzyss.top	9/18/2026
zzzstrongtea.com	9/21/2026
zzzppplll.cn	9/22/2026
zzzpband.com	9/16/2026
zzzoo.app	9/23/2026
zzzmisa.com	9/16/2026
zzzm.online	9/13/2026
zzzionline.com	9/20/2026
zzzhz.games	9/19/2026
and 709,868 more

185.199.110.153 704,849 domains · here since 9/16/2026

Domain	On this IP since
zzzzsky.com	9/23/2026
zzzzquan.cn	9/18/2026
zzzzjuttzone.site	9/14/2026
zzzyss.top	9/18/2026
zzzstrongtea.com	9/21/2026
zzzppplll.cn	9/22/2026
zzzpband.com	9/16/2026
zzzoo.app	9/23/2026
zzzmisa.com	9/16/2026
zzzm.online	9/13/2026
zzzionline.com	9/20/2026
zzzhz.games	9/19/2026
and 704,836 more

185.199.111.153 704,044 domains · here since 9/16/2026

Domain	On this IP since
zzzzsky.com	9/23/2026
zzzzquan.cn	9/18/2026
zzzzjuttzone.site	9/14/2026
zzzyss.top	9/18/2026
zzzstrongtea.com	9/21/2026
zzzppplll.cn	9/22/2026
zzzpband.com	9/16/2026
zzzoo.app	9/23/2026
zzzmisa.com	9/16/2026
zzzm.online	9/13/2026
zzzionline.com	9/20/2026
zzzhz.games	9/19/2026
and 704,031 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!