Security Review

Is app.rule34.dev legit or a scam?

Our verdict:Suspicious· 55/100

Adult-content aggregator with mixed reputation signals — one antivirus detection versus positive independent reviews, but no verifiable business registration.

app.rule34.devScanned 1h ago
0
Trust score
SUSPICIOUS
Heuristics 67·MT 52
Category tags
adult contentaggregator#Data Harvester72% MT confidence
Technical red flags (1)

These checks passed — but they don't clear the site. A clean antivirus result, valid SSL, and a calm server only mean it isn't hosting malware; they say nothing about whether the business is real. This verdict is based on the site's conduct and content, not a malware detection.

View density

Analysis Summary

Threat Intelligence
1/92
Engines flagged this URL
Domain Age
4 years old
Registered May 31, 2022
MT Intelligence
Suspicious
Moderate likelihood · 72% confidence
SUSPICIOUS

Warning signs detected

Adult-content aggregator with mixed reputation signals — one antivirus detection versus positive independent reviews, but no verifiable business registration. Several risk indicators suggest caution. This site might be legitimate — but treat it as unverified until you can independently confirm.

Website Preview

Screenshot of app.rule34.dev
LIVE RENDER
app.rule34.dev

Automated page render — captured in a safe sandbox. What an ordinary visitor would see when loading the site.

MT Intelligence

Advanced threat intelligence
MT Security Analyst
Moderate scam likelihoodengineMT · Guardiantrust52/100
MT AgentLive web researchVisual inspection
0%
Confidence
The domain is approximately 4 years old and hosts a functional aggregator platform pulling content from established adult-content sources like Gelbooru, e-hentai, and e621. Webroot flags the URL as malicious, but our sandbox did not trigger, and major browser blocklists remain clean. Independent review sites give conflicting assessments: one rates it 'very likely safe and legit', another scored it 0/100 and called it high-risk, and a third (GridinSoft) assigns 79/100 trust with a note that only Webroot among 26 engines flags it. The site has no public business registration, no contact information, and WHOIS privacy is disabled but owner details are not disclosed. The single antivirus detection combined with the absence of verifiable business identity and the nature of adult-content aggregation (which can expose users to malware-laden downloads from third-party sources) justifies a suspicious rating, though the age of the domain and lack of phishing or credential-harvest patterns prevent a malicious classification.
Full dossier
Analysis complete

Page Content

The site presents itself as an aggregator of hentai, anime, and adult artwork, pulling content from over 50 established boorus and image-sharing platforms. The interface includes search, filtering by character/series/artist, and high-resolution viewing options. No login is required to browse. The page loads external resources from Backblaze B2 (CDN), Google Tag Manager, Yandex analytics, and Cloudflare Insights.

Infrastructure

Hosted on Cloudflare (IP 104.21.67.126, US-based). SSL certificate is valid and issued by Google Trust Services, expiring in 81 days. The IP has zero abuse reports and a clean reputation score. No redirects or homoglyph tricks detected.

Domain History

Registered approximately 1,476 days ago (~4 years) via Squarespace Domains II LLC. WHOIS privacy is disabled, but owner details are not publicly disclosed. The domain is not indexed in global traffic rankings, suggesting limited mainstream visibility.

Web Reputation

Webroot antivirus flags the URL as malicious (1 of 92 engines). Independent review aggregators show conflicting signals: one rates it 'very likely safe and legit', another scored it 0/100 and flagged high-risk characteristics, and a third assigned 79/100 trust. A specialist adult-content review site (ThePornDude) gave it 4/5 stars, praising the interface and content range. No business registration found in US corporate databases.

Risk Factors
6
  • One antivirus engine (Webroot) flags the URL as malicious, creating uncertainty despite clean sandbox and browser-blocklist results.
  • No verifiable business registration, owner identity, or contact information — WHOIS privacy disabled but details not disclosed.
  • Adult-content aggregator model exposes users to potential malware in third-party downloads from linked boorus and image boards.
  • Conflicting independent trust assessments (one site rated it 0/100 and high-risk; another rated it 79/100 and safe).
  • Not indexed in global traffic rankings, limiting ability to verify legitimacy through mainstream web presence.
  • External analytics and tracking services (Google Tag Manager, Yandex, Cloudflare Insights) collect user behaviour data.
Positive Signals
5
  • Domain is approximately 4 years old, suggesting operational stability rather than ephemeral fraud.
  • Valid SSL certificate issued by a trusted certificate authority (Google Trust Services).
  • Hosting IP has zero abuse reports and a clean reputation score.
  • Independent review site rated it 'very likely safe and legit' with valid SSL noted.
  • Specialist adult-content reviewer gave it 4/5 stars, praising polished interface and content aggregation.
AI Recommendation
Do not enter payment information or personal credentials on this site. If you choose to browse, use a dedicated device or virtual machine, disable JavaScript if possible, and avoid downloading files from linked boorus, as third-party content sources may carry malware. The single antivirus detection and lack of business transparency warrant caution despite positive independent reviews.
Next-gen fraud intelligence
Evidence-backedCross-checked

Web Research Findings

Our live research agent queries scam-report databases, consumer-review sites, news coverage, and general web search for app.rule34.dev, then cross-checks business-registration records and look-alike domain patterns. Everything below is pulled from what it actually found.

Domain age
4.0 yrs
Registered May 2022
Business registration
No public record found
Could not match the site to a registered company — common for small sites.
Clone check
Not a clone
No well-known site's layout or branding detected here.
Typosquat check
No look-alike match
The domain doesn't resemble any well-known brand's spelling.
Web mentions
2 scam reports · 3 positive
Key findings
7 headline facts from open-web research
  • Domain app.rule34.dev is a subdomain of rule34.dev (age ~1476 days / ~4 years); hosts hentai/anime porn aggregator pulling images, videos, GIFs from multiple boorus including rule34.xxx, Gelbooru, e-hentai, e621, Yande.re
  • Scamadviser rates it "Very Likely Safe" and "very likely not a scam but legit and reliable" with valid SSL; notes it is an art/entertainment site that may offer adult content; negative points include low Tranco rank and being a site within
  • ThePornDude review (4/5 rating) praises polished interface, large range of content, and aggregator concept; minor con is occasional bad search results
  • GridinSoft gives 79/100 trust score but notes 1/26 provider warning (Webroot flags as Malicious); other scanners (BitDefender, Kaspersky, Google Safebrowsing) clean
  • EvenInsight previously scored rule34.dev 0/100 and called it high-risk/scam; some general adult-site risks mentioned (popups, potential malware in downloads, trackers)
  • No business registration, owner, or company details publicly available; WHOIS hidden; hosted via Cloudflare in the US; active high-traffic NSFW site with feedback forum at feedback.r34.app
  • Related projects include r34.app (mobile-first Rule 34 app) and GitHub org Rule-34; occasional user reports of viruses from downloaded Rule 34 content on other sites
Scam reports (2)
Direct quotes from public scam databases, forums, and news.
  • eveninsight.comopen

    "Rule34.dev has a safety score of 0 out of 100. ... We strongly recommend avoiding it due to its high-risk nature. It has a high possibility of being a scam"

  • GridinSoftopen

    "Provider warnings: 1/26 ... Webroot Malicious"

Positive reviews (3)
Quotes indicating the site is legitimate.
  • Scamadviseropen

    "In summary, app.rule34.dev is very likely not a scam but legit and reliable."

  • ThePornDudeopen

    "The site is basically an aggregator of content from some of the more popular hentai imageboards out there. ... User Rating 4/5"

  • GridinSoftopen

    "Based on current analysis, app.rule34.dev appears to be generally safe. ... The current trust score is 79/100."

Research summary
Narrative write-up from our AI analyst, grounded on the facts above

Independent review sites and specialist adult-content reviewers provided conflicting assessments. One aggregator rated app.rule34.dev 'very likely safe and legit', while a specialist reviewer (ThePornDude) gave it 4/5 stars, praising the interface and content range. However, another review site scored rule34.dev 0/100 and flagged it as high-risk, citing general adult-site risks including popups, potential malware in downloads, and tracking. GridinSoft's multi-engine analysis showed only Webroot flagging it as malicious among 26 scanners, with a trust score of 79/100. No business registration, owner details, or formal company information was found in public databases.

Antivirus Engines

Detection matrix · live
1 engine flagged this URL

We cross-check every URL against our antivirus network of 92 malware and blacklist engines. Each detection is listed below by engine name — even a single hit is a meaningful signal.

1Malicious0Suspicious56Harmless92Engines
0
of 92
Webroot
Malicious· malicious

1 antivirus engine flagged this URL. Even a single detection is a meaningful signal — treat this site with extra caution and avoid entering credentials, payment info, or downloading any files.

Security Scans

Blacklist Check
Not flagged on major threat lists

Checked against the major public blocklists used by browsers and security tools — no hits.

Contact Verification

We fetched the page and looked for real-world contact details. Legitimate businesses almost always publish an email on their own domain, a phone number, and a postal address. Scam shops usually don't.

What We Found
No clear contact details on the page
Emails on site's domainNone
Phone numbersNone
Postal addressNot listed
Linked social profiles0
Signal Summary
Several contact red flags
  • No contact email found anywhere on the page.
  • No phone number listed on the page.
  • No postal address visible on the page.

Domain & Encryption

Domain History
Age4 years old
RegistrarSquarespace Domains II LLC.
RegisteredMay 31, 2022
ExpiresMay 31, 2031
Owner privacyVisible
Encryption Certificate
StatusValid
ProtocolTLSv1.3
IssuerGoogle Trust Services · WE1
ExpiresSep 5, 2026 (81d)
Self-signedNo
Hosting & Technology
HostingCloudflare, Inc.
Server locationUS
Web servercloudflare

Redirect Chain

Hops
1
Cross-domain
No
Lookalike
No
Punycode
No
  • 1301http://app.rule34.dev/
  • 2200https://app.rule34.dev/

Server Reputation

Abuse Intelligence
Confidence score0%
Reports on file0
ISPCloudflare, Inc.
Usage typeContent Delivery Network

Proceed with caution

Our automated review flagged enough risk that you should treat this site as unverified.

  • Treat app.rule34.dev as unverified

    Do not enter credentials or send money until you have independently verified the business.

  • Verify the business through independent channels

    Check the company's social profiles, registry records, and search for recent news or reviews that are not hosted on the site itself.

  • Never use irreversible payment methods

    Crypto, gift cards, wire transfers, and cash apps offer zero buyer protection. Use a credit card or PayPal if you must pay.

  • Share your experience

    If you have additional context, drop a comment below or post on the MalwareTips forum.

    Open

Reputation Sources

How this domain rates across independent threat-intelligence and blocklist providers.

Google Safe Browsing
Not listedCheck ↗
VirusTotal
ListedCheck ↗
AbuseIPDB
Not listedCheck ↗

Referenced Domains

Outbound domains this page links to or loads resources from. Each links to its own security scan.

Safety FAQ

Common questions about this site, answered directly from the scan data above — so the answers always reflect the latest verdict on this page.

  • Our automated security review marked app.rule34.dev as suspicious. Several warning signs were detected; it may still turn out legitimate, but you should verify it through independent channels before trusting it with money or credentials.
  • app.rule34.dev currently scores 55/100 on our trust scale. We found enough warning signals to recommend caution. Verify the site through independent channels before entering credentials or money.
  • Yes. app.rule34.dev presents a valid TLSv1.3 certificate issued by Google Trust Services · WE1, expiring in 81 days. Note that SSL only encrypts the connection — it does not guarantee that the site itself is trustworthy.
  • app.rule34.dev is 4.0 years old, registered on 5/31/2022 through Squarespace Domains II LLC.. Scam domains are often freshly registered — a site under 6 months old warrants extra caution.
  • 1 out of 92 antivirus engines in our malware network flagged app.rule34.dev as malicious or suspicious (1 outright malicious). Even one detection is a meaningful signal.
  • No. app.rule34.dev is not currently listed on the major browser blocklist feeds that modern browsers use.
  • app.rule34.dev resolves to an IP operated by Cloudflare, Inc. in US (usage type: Content Delivery Network). Hosting location alone doesn't make a site good or bad, but unusual geography for a brand's claimed country is one of many signals we weigh.
  • This is a permanent record of the scan run on June 15, 2026. The verdict and evidence above reflect that scan and do not change on their own. If circumstances around app.rule34.dev have changed, MalwareTips staff can run a fresh scan, which re-runs every check from scratch and publishes an updated report.

Final Verdict

0
Trust / 100
Final Verdict·app.rule34.dev
SUSPICIOUS

Rule34.dev is a hentai and adult-content aggregator that pulls images and videos from established boorus. One antivirus engine flags it as malicious, but independent reviewers rate it as legitimate; the conflicting signals and lack of business transparency create moderate risk.

Do not enter payment information or personal credentials on this site. If you choose to browse, use a dedicated device or virtual machine, disable JavaScript if possible, and avoid downloading files from linked boorus, as third-party content sources may carry malware. The single antivirus detection and lack of business transparency warrant caution despite positive independent reviews.

AV engines
92
MT passes
2
Net signals
0
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Community review

User reviews & comments(0)

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This report is generated automatically by combining threat intelligence, domain signals, and an AI security analyst. It is informational, not legal advice. Always use your own judgement before sharing personal information or money online.