testopia.app

Get an email when its DNS, website or certificate changes.

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

23,499,553 other domains share an IP address with it.

The most recent crawl returned the page title “Testopia | Turn Your PDFs into Quizzes with AI” and 153,574 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	23,499,553	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": "testopia.app"}'

Create a free account Read the API docs

Similar websites

Website	Similarity
prepinity.com Prepinity — Global Exam Preparation Platform \| Free Notes, Calculators & AI Free study notes, practice tests, score calculators, AI study tools, and resources for 50+ international exams (SAT, IELTS, GRE, TOEFL, GMAT, PTE, ACT, CFA,...	85 %
prepo.me Prepo – AI Homework Helper \| STEM Problem Solver & Exam Prep Prepo: step-by-step STEM problem solving, AP/SAT/ACT exam prep, AI active-recall flashcards, and study groups. On iOS, Android, Windows, Mac, and the web.	84 %
aripsy.com Aripsy – AI Study Tool \| Exam-Ready Notes, Flashcards & Quizzes Turn pasted text and audio files into study notes and flashcards. Upload PDF, PowerPoint, or Word with document access; Pro adds MCQs and more practice.	83 %
gooclass.com SmartPrep Tutors \| Gooclass.Com Personalized test prep and tutoring to boost scores and confidence - expert tutors, targeted practice, and tailored study plans for academic success.	82 %
satmathguide.com SAT Math: Free Practice Tests, Formula Sheet, Score Calculator & Prep Free SAT math practice questions, interactive formula sheet, reference sheet, score calculator, and full practice tests. Prep smarter, score higher: no login...	82 %
prepzy.tech Prepzy \| AI-Powered Exam Preparation for Students in Pakistan Prepzy helps Pakistani students crack exams with AI study assistant, quiz generator, smart summarization, study planner, and performance tracking. Smarter pr...	82 %
studyoptima.com StudyOptima - Master Professional Exams Online learning platform for CFA, FRM, and other professional exams	82 %
passify.study Passify — Master Your Exams with AI-Powered Precision Smart, interactive mock exams and daily personalized practice for SAT, IELTS, TOEFL and CSCA. Powered by AI.	82 %
nailthetest.com NailTheTest — Ace Every Exam Exam prep with a proprietary learning engine that focuses your study time where it matters most. Practice tests, flashcards, spaced repetition, and personali...	81 %
examanywhere.com ExamAnywhere — Study Anywhere, Pass Everywhere	81 %
studyexam.ai Study Exam – AI Study Assistant, Tutor & Practice Exam Generator Turn your notes, course material, and lessons into personalised AI tutoring, flashcards, quizzes, practice exams, and study plans with Study Exam.	81 %
acequiz.ai AI Study Tools for Students: Quizzes, Flashcards & AI Tutor \| AceQuiz Turn your slides, PDFs, and lectures into quizzes, flashcards, notes, and timed mock exams. Free AI study tools built for STEM students. No credit card needed.	81 %
tutorspacenolanheath.com TutorSpace - Expert Online Tutoring	81 %
class-notes.com ClassNotes — FBISE, SAT, NET & ECAT Exam Prep Prepare for FBISE board exams, SAT test prep, NUST entry test, and ECAT with ClassNotes. Find notes, practice tests, flashcards, and guided study resources f...	80 %
classnotes.xyz ClassNotes — FBISE, SAT, NET & ECAT Exam Prep Prepare for FBISE board exams, SAT test prep, NUST entry test, and ECAT with ClassNotes. Find notes, practice tests, flashcards, and guided study resources f...	80 %
examination.live Exam Ready Tutors \| Examination.Live Personalized test prep and tutoring to boost scores for SAT, ACT, GRE and school exams. Expert tutors, proven strategies, flexible online sessions.	80 %
studyshare.app Study Share \| AI SAT & ACT Prep Platform with Bluebook-Style Practice Study Share is an AI-powered SAT, ACT, and PSAT prep platform with Bluebook-style practice tests, an AI tutor, adaptive diagnostics, analytics, flashcards, a...	80 %
kyoedu.com Global Test Academy \| MAP, SAT, SSAT, ISEE & CAT4 Practice Global Test Academy offers online MAP Growth, SAT, ACT, SSAT, ISEE, CAT4, NAPLAN, ICAS and ACER practice tests with mistake review and score reports.	80 %
studycamp.app Studycamp Everything for studying. Finally in one place. Upload lectures, study with AI, plan your semester. Free to start.	80 %
thestudents.shop Study Buddy Hub \| Thestudents.Shop Friendly homework and study help for students — clear explanations, practice resources, and tools to boost grades and confidence.	80 %

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	9/27/2026
Valid to	12/26/2026
Time until expiry	67 days

Last successful crawl

Title	Testopia \| Turn Your PDFs into Quizzes with AI
Description	Transform your study notes, PDFs, and slides into personalized tests with Testopia. Our AI-powered app uses active recall and spaced repetition to help you ace your exams smarter, not harder.
Content-Length	153,574 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
104.21.74.123	5/30/2026
172.67.158.93	5/30/2026
188.114.96.0	5/7/2026
188.114.97.0	5/7/2026
104.21.74.123	4/30/2026

IPv6 address	Last updated
2606:4700:3037:0:0:0:6815:4a7b	6/24/2026
2606:4700:3037:0:0:0:ac43:9e5d	6/24/2026
2606:4700:3030:0:0:0:ac43:9e5d	5/22/2026
2606:4700:3031:0:0:0:6815:4a7b	5/22/2026
2a06:98c1:3120:0:0:0:0:0	4/23/2026

Name server	Last updated
jake.ns.cloudflare.com	2/4/2026
novalee.ns.cloudflare.com	2/4/2026
ns1.websupport.cz	3/21/2025
ns2.websupport.cz	3/21/2025
ns3.websupport.eu	3/21/2025

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

188.114.97.2 1,298,549 domains · here since 10/18/2026

Domain	On this IP since
zzzzy.com	10/3/2026
zzzzred.com	10/7/2026
zzzzi6.com	10/17/2026
zzzzbett-br.com	10/15/2026
zzzzbetdd.com	10/7/2026
zzzzapp.org	9/30/2026
zzzzahodim.com	10/15/2026
zzzzab.com	10/19/2026
zzzz77777.com	10/20/2026
zzzz3.app	10/15/2026
zzzz1998e.com	10/14/2026
zzzz.am	10/8/2026
and 1,298,536 more

188.114.96.2 1,298,531 domains · here since 10/18/2026

Domain	On this IP since
zzzzy.com	10/3/2026
zzzzred.com	10/7/2026
zzzzi6.com	10/17/2026
zzzzbett-br.com	10/15/2026
zzzzbetdd.com	10/7/2026
zzzzapp.org	9/30/2026
zzzzahodim.com	10/15/2026
zzzzab.com	10/19/2026
zzzz77777.com	10/20/2026
zzzz3.app	10/15/2026
zzzz1998e.com	10/14/2026
zzzz.am	10/8/2026
and 1,298,518 more

2a06:98c1:3120::3 10,451,238 domains · here since 10/6/2026

Domain	On this IP since
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzz.org	10/19/2026
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 10,451,225 more

2a06:98c1:3121::3 10,451,235 domains · here since 10/6/2026

Domain	On this IP since
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzz.org	10/19/2026
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 10,451,222 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!