Is tetr.io safe?
http://tetr.io/
Coveragestrong3 of 4 applicable core capabilities
TETR.IO is a legitimate browser-based stacker game with advertising and merch sales.
The site operates as a free-to-play online game with integrated ads and a merch store processed through Xsolla. It is run by a named individual with public contact channels and shows no malware or phishing indicators.
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Where this site sits
- Dangerous1–20
- High Risk21–44
- Moderate Risk45–69
- Low Risk70–84
- Safe85–100
The score combines saved evidence strength and analysis quality. Coverage is reported separately.
01 · Investigation Brief
Investigation Brief
The site operates as a free-to-play online game with integrated ads and a merch store processed through Xsolla. It is run by a named individual with public contact channels and shows no malware or phishing indicators.
Technical and reputation checks
The domain presents a valid TLS certificate and returns no threat warnings from the browser threat feed or the multi-engine malware scan.
User reports note occasional performance issues and intrusive ads that can cover the game screen, but these are gameplay friction rather than security threats.
How the site makes money
A visible MERCH link leads to a store that uses Xsolla for payment processing, and the site also displays ads from standard networks such as Google.
Support is offered through a domain email (support@tetr.io) and a public Discord server; the developer’s personal site (osk.sh) is linked for business inquiries.
Why the score is 82
The saved checks found no material threat, but the evidence was not strong enough for the highest Safe tier. Coverage remains separate so missing sources cannot be mistaken for clean results.
02 · Security Evidence
Security evidence
Antivirus Engines
0/ 92
No detectionsSaved result - stale
No detections across 92 engines
No antivirus engine in this saved scan raised an adverse result. This is one signal, not a guarantee.
- Malicious
- 0
- Suspicious
- 0
- Total
- 92
All 92 engine results
- 0xSI_f33d - unrated - Clean
- Abusix - clean - Clean
- Acronis - clean - Clean
- ADMINUSLabs - clean - Clean
- AILabs (MONITORAPP) - clean - Clean
- AlienVault - clean - Clean
- alphaMountain.ai - clean - Clean
- AlphaSOC - unrated - Clean
- Antiy-AVL - clean - Clean
- ArcSight Threat Intelligence - unrated - Clean
- AutoShun - unrated - Clean
- Bfore.Ai PreCrime - unrated - Clean
- BitDefender - clean - Clean
- Bkav - unrated - Clean
- BlockList - clean - Clean
- Blueliv - clean - Clean
- Certego - clean - Clean
- ChainPatrol - unrated - Clean
- Chong Lua Dao - unrated - Clean
- CINS Army - clean - Clean
- CRDF - clean - Clean
- Criminal IP - clean - Clean
- CSIS Security Group - unrated - Clean
- CTX AI - clean - Clean
- Cyan - unrated - Clean
- Cyble - clean - Clean
- CyRadar - clean - Clean
- desenmascara.me - clean - Clean
- DNS8 - unrated - Clean
- Dr.Web - clean - Clean
- EmergingThreats - clean - Clean
- Emsisoft - clean - Clean
- Ermes - unrated - Clean
- ESET - clean - Clean
- ESTsecurity - clean - Clean
- Forcepoint ThreatSeeker - clean - Clean
- Fortinet - clean - Clean
- Fortra - unrated - Clean
- G-Data - clean - Clean
- GCP Abuse Intelligence - unrated - Clean
- Google Safe Browsing - clean - Clean
- GreenSnow - clean - Clean
- GreyNoise - unrated - Clean
- Gridinsoft - unrated - Clean
- Guardpot - unrated - Clean
- Heimdal Security - clean - Clean
- Hunt.io Intelligence - unrated - Clean
- IPsum - clean - Clean
- Juniper Networks - clean - Clean
- K7AntiVirus - unrated - Clean
- Kaspersky - clean - Clean
- LevelBlue - clean - Clean
- Lionic - clean - Clean
- Lumu - unrated - Clean
- Malwared - clean - Clean
- MalwarePatrol - clean - Clean
- MalwareURL - unrated - Clean
- Mimecast - unrated - Clean
- Netcraft - unrated - Clean
- OpenPhish - clean - Clean
- PhishFort - unrated - Clean
- Phishing Database - clean - Clean
- Phishtank - clean - Clean
- PREBYTES - clean - Clean
- PrecisionSec - unrated - Clean
- Quick Heal - clean - Clean
- Quttera - clean - Clean
- Rising - clean - Clean
- SafeToOpen - unrated - Clean
- Sangfor - clean - Clean
- Sansec eComscan - unrated - Clean
- Scantitan - clean - Clean
- SCUMWARE.org - clean - Clean
- Seclookup - clean - Clean
- Snort IP sample list - unrated - Clean
- SOCRadar - unrated - Clean
- Sophos - clean - Clean
- StopForumSpam - clean - Clean
- Sucuri SiteCheck - clean - Clean
- Synthient - unrated - Clean
- ThreatHive - clean - Clean
- URLhaus - clean - Clean
- URLQuery - clean - Clean
- Viettel Threat Intelligence - clean - Clean
- VIPRE - unrated - Clean
- ViriBack - clean - Clean
- VX Vault - clean - Clean
- Webroot - clean - Clean
- Xcitium Verdict Cloud - clean - Clean
- Yandex Safebrowsing - clean - Clean
- ZeroCERT - clean - Clean
- ZeroFox - unrated - Clean
Security Scans
Checked against the browser threat feeds available to this scan — no hit.
What we observed
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Visual context from the captured page
TETR.IO BETA ©2019-2026 osk
What the captured page showed
2 observations- 01
TETR.IO BETA
- 02
©2019-2026 osk
03 · Investigation Story
Investigation story
What the site claims
TETR.IO
What we observed
The page content was captured and checked alongside 92 antivirus results.
What independent research found
2 external findings were saved and compared with the page evidence.
What remains unverified
1 of the 4 applicable core capabilities did not complete, so those gaps remain visible in the coverage ledger.
What kind of site and risk is this?
Threat category
No threat category confirmed
Service and business model
Content
Observed behavior
Evidence behind this classification
- 01Contact email on the site's own domain (support@tetr.io).
- 02TETR.IO provides online gameplay services free of charge to end users, along with online rankings and means of communication.
- 03MERCH
Web research findings
Independent findings for tetr.io, including public complaints, named review sources, registration records, and look-alike-domain evidence. A missing result is shown as unverified, never converted into a clean bill of health.
Reputation Sources
How this domain rates across independent threat-intelligence and blocklist providers.
04 · Domain & Infrastructure
Domain & infrastructure
The plumbing behind the site — who registered it, how it’s encrypted, where it’s hosted, and where it links out. A valid certificate or a calm server doesn’t mean the business is honest — scam sites pass these checks too. Use this to corroborate the verdict, not to overturn it.
Infrastructure map
How the saved page connected to the wider web.
- Domaintetr.io
- Redirects totetr.io
- Hosted byCloudflare, Inc.
- Referencesa.pub.network · b.pub.network
Contact Verification
Saved contact details can help identify the operator. Their presence supports traceability; it does not prove the business is trustworthy.
- Contact email on the site's own domain (support@tetr.io).
- Links to 2 social profiles.
Domain & Encryption
Redirect Chain
- 1301http://tetr.io/
- 2200https://tetr.io/
Server Reputation
Referenced Domains
Outbound domains this page links to or loads resources from. Each links to its own security scan.
05 · Evidence Ledger
Evidence ledger
- Antiviruspartial
- Browser threat feedcomplete
- Page contentcomplete
- Analysiscomplete
- Visual evidencecomplete
The conclusion is supported by the evidence saved with this report.
Technical threat
unknownMalware, phishing, credential theft and hostile infrastructure.
No confirmed evidence in this dimension.
Operator / customer risk
suspiciousComplaints, withdrawals, business conduct and commercial traps.
Additional evidence review
Source coverage and freshness
Status shows whether usable evidence was saved; finding shows what that evidence observed.
| Source | Result | Completion | Finding | Freshness |
|---|---|---|---|---|
| Antivirus | 0 of 92 engines flagged | Limited | No saved finding | stale fallback · Oct 5, 2026 |
| Browser protection | No browser threat-list match | Completed | No adverse finding | Not available |
| Page content | Page fetched · HTTP 200 | Completed | No adverse finding | Not available |
| Visual evidence | 2 visible observations saved with the page capture | Completed | No adverse finding | Not available |
| Independent research | 2 independent findings were saved | Completed | Adverse | Not available |
- Antivirus
- Result0 of 92 engines flagged
- CompletionLimited
- FindingNo saved finding
- Freshnessstale fallback · Oct 5, 2026
- Browser protection
- ResultNo browser threat-list match
- CompletionCompleted
- FindingNo adverse finding
- FreshnessNot available
- Page content
- ResultPage fetched · HTTP 200
- CompletionCompleted
- FindingNo adverse finding
- FreshnessNot available
- Visual evidence
- Result2 visible observations saved with the page capture
- CompletionCompleted
- FindingNo adverse finding
- FreshnessNot available
- Independent research
- Result2 independent findings were saved
- CompletionCompleted
- FindingAdverse
- FreshnessNot available
07 · Safety FAQ
Safety FAQ
Common questions, answered directly from the scan data above — so the answers reflect the saved verdict and evidence in this report.
Is tetr.io a scam or is it safe?
Is tetr.io safe to use?
Has tetr.io been flagged by antivirus engines?
Is tetr.io on any phishing or malware blacklists?
Does tetr.io have a valid SSL certificate?
Where is tetr.io hosted?
Is tetr.io a well-known website?
How often is the tetr.io report updated?
08 · Final Verdict
Final verdict
TETR.IO is a legitimate browser-based stacker game with advertising and merch sales.
The site operates as a free-to-play online game with integrated ads and a merch store processed through Xsolla. It is run by a named individual with public contact channels and shows no malware or phishing indicators.
09 · Community
