Security Review

Is lua.org legit or a scam?

Our verdict:Safe· 94/100

The official home of the Lua programming language, registered for over 26 years with a perfect security record and global academic backing.

lua.orgScanned 1h ago
0
Trust score
SAFE
Heuristics 90·MT 95
View density

Analysis Summary

Threat Intelligence
0/92
All engines report clean
Domain Age
26 years old
Registered May 1, 2000
MT Intelligence
Safe
Low likelihood · 100% confidence
SAFE

No threats detected

All checks passed. This site appears legitimate — but always stay alert for phishing even on trusted domains.

Website Preview

Screenshot of lua.org
LIVE RENDER
lua.org

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

Visual Screenshot Analysis

We capture a fresh screenshot of the live page and ask a vision model to look for scam visual patterns — fake trust badges, countdown timers, overlay pop-ups, and visual clones of legitimate brands.

0
/ 100
No visual red flags

No scam visual patterns detected

The screenshot shows the legitimate, fully-rendered homepage for the Lua programming language with no signs of scam patterns or malicious intent.

Visual risk0/100

What our vision model saw

4 signals

Official logo for the Lua programming language

Navigation links for documentation, community, and downloads

Attribution to PUC-Rio university

Clean, minimalist layout consistent with official project documentation

MT Intelligence

Advanced threat intelligence
MT Security Analyst
Low scam likelihoodengineMT · Guardiantrust95/100
MT AgentLive web researchVisual inspection
0%
Confidence
The domain has been active since May 2000 and is universally recognized as the authoritative source for the Lua language. Our analysis shows zero malicious detections across more than 90 security engines. The site is hosted and maintained by LabLua at PUC-Rio, a major university in Brazil. It serves as the primary distribution point for official source code and documentation, with no history of fraudulent activity or security compromises.
Full dossier
Analysis complete

Page Content

The website serves as a technical hub, providing the official reference manual, source code downloads, and community links. The layout is minimalist and functional, focusing on documentation and academic attribution to PUC-Rio.

Infrastructure

The site is hosted on a stable IP address with no history of abuse reports. It utilizes a valid SSL certificate and loads resources from trusted university subdomains.

Domain History

Registered in 2000, this domain is one of the oldest active technical sites on the web. Its longevity and consistent ownership by the Lua development team provide a high degree of trust.

Web Reputation

The site is cited as the official source by Wikipedia, GitHub, and major programming platforms like Roblox. It maintains a flawless reputation within the global developer community.
Positive Signals
5
  • Official domain for a major programming language
  • Domain age exceeds 26 years
  • Zero malicious detections across our antivirus network
  • Maintained by a reputable academic institution (PUC-Rio)
  • Consistently cited by authoritative sources like Wikipedia and GitHub
AI Recommendation
This site is entirely safe to use for downloading Lua source code and accessing programming documentation.
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 lua.org, then cross-checks business-registration records and look-alike domain patterns. Everything below is pulled from what it actually found.

Domain age
26 yrs
Registered May 2000
Business registration
Active · Brazil
Site traces back to an actively registered business.
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
3 positive
Key findings
7 headline facts from open-web research
  • lua.org is the official website of the Lua programming language, explicitly stated on the site and corroborated by Wikipedia, GitHub repository, lua-users.org, and multiple educational/technical resources.
  • Lua is designed, implemented, and maintained by a team at LabLua, a laboratory in the Department of Computer Science at PUC-Rio (Pontifical Catholic University of Rio de Janeiro, Brazil); originated in 1993 at Tecgraf/PUC-Rio.
  • Domain registered since May 2000 (over 26 years old as of 2026); site provides official source code downloads, reference manuals, books, and community links.
  • No scam, malware, phishing, or complaint reports found specifically targeting lua.org; searches for "lua.org scam" return only unrelated results about Lua-based malware in games/cheats.
  • Donations to the project are managed by Software in the Public Interest (SPI), a US non-profit organization, as an associated project; book sales via Lua.org also support development.
  • Widely recommended as the authoritative source in programming tutorials, Roblox dev forums, Codecademy, Exercism, and academic references.
  • Related but distinct projects exist (e.g., Luau at luau.org by Roblox), but lua.org remains the original language's home.
Positive reviews (3)
Quotes indicating the site is legitimate.
  • Wikipediaopen

    "Website | lua.org"

  • GitHub (lua/lua)open

    "For complete information about Lua, visit Lua.org. Download official Lua releases from Lua.org"

  • lua-users.orgopen

    "please visit the official Lua web site. The lua-users.org web is not affiliated with Tecgraf."

Business registration
Status: active · Brazil

Maintained by LabLua at PUC-Rio (Pontifical Catholic University of Rio de Janeiro); donations managed via SPI (Software in the Public Interest), a US non-profit

Research summary
Narrative write-up from our AI analyst, grounded on the facts above
Our research confirms that lua.org is the official website of the Lua programming language, maintained by LabLua at the Pontifical Catholic University of Rio de Janeiro (PUC-Rio). We found no scam reports or complaints across technical forums or consumer review sites. Instead, the domain is cited as the authoritative source for software downloads and documentation by Wikipedia, the official Lua GitHub repository, and numerous educational platforms.

Antivirus Engines

Clean pass · verified
Clean across 92 engines

We cross-check every URL against our antivirus network of 92 malware and blacklist engines. None of them flagged this URL in the last scan.

0Malicious0Suspicious59Harmless92Engines
Clean
Kaspersky
Clean
Bitdefender
Clean
Microsoft
Not in pass
ESET-NOD32
Not in pass
Avira
Not in pass
Sophos
Clean
Fortinet
Clean
Google Safebrowsing
Clean
Emsisoft
Clean

No engine detections. The URL passed every antivirus and blacklist engine we queried in this scan. Stay vigilant — AV coverage is only one signal among many.

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
Age26 years old
RegistrarGandi SAS
RegisteredMay 1, 2000
ExpiresMay 1, 2028
Owner privacyVisible
Encryption Certificate
StatusValid
ProtocolTLSv1.3
IssuerLet's Encrypt · YE1
ExpiresSep 10, 2026 (82d)
Self-signedNo
Hosting & Technology
HostingMicro Systems Marc Balmer
Server locationCH
Web servernginx/1.20.1

Redirect Chain

Hops
1
Cross-domain
No
Lookalike
No
Punycode
No
  • 1301http://lua.org/
  • 2200https://lua.org/

Server Reputation

Abuse Intelligence
Confidence score0%
Reports on file0
ISPMicro Systems Marc Balmer
Usage typeData Center/Web Hosting/Transit

Still, stay alert

No major threat indicators — but a clean scan does not guarantee every page is safe, and phishing emails routinely spoof real domains.

  • Double-check the exact URL in your address bar

    Confirm you are actually on lua.org and not a lookalike like l-ua.org.com or an IDN homoglyph.

  • Use a password manager

    Password managers only auto-fill on the exact domain they were saved for — they refuse to fill lookalike domains, which is the single best phishing defence.

  • Discuss this site on the forum

    If you have first-hand experience with this site — good or bad — share it with the MalwareTips community.

    Open

Reputation Sources

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

Google Safe Browsing
Not listedCheck ↗
VirusTotal
Not 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 found no threat indicators on lua.org. The site appears legitimate based on the signals we checked, but always stay alert for phishing emails that spoof real domains.
  • lua.org passed our automated security checks with a trust score of 94/100. No antivirus engines or major blacklists flagged the site at the time of the last scan.
  • Yes. lua.org presents a valid TLSv1.3 certificate issued by Let's Encrypt · YE1, expiring in 82 days. Note that SSL only encrypts the connection — it does not guarantee that the site itself is trustworthy.
  • lua.org is 26.2 years old, registered on 5/1/2000 through Gandi SAS. Scam domains are often freshly registered — a site under 6 months old warrants extra caution.
  • No. All 92 antivirus engines in our malware network report lua.org as clean.
  • No. lua.org is not currently listed on the major browser blocklist feeds that modern browsers use.
  • lua.org resolves to an IP operated by Micro Systems Marc Balmer in CH (usage type: Data Center/Web Hosting/Transit). 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 20, 2026. The verdict and evidence above reflect that scan and do not change on their own. If circumstances around lua.org 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·lua.org
SAFE

This is the official website for the Lua programming language. It is a highly reputable, long-standing technical resource maintained by the Pontifical Catholic University of Rio de Janeiro.

This site is entirely safe to use for downloading Lua source code and accessing programming documentation.

AV engines
92
MT passes
2
Net signals
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.