Is facil.io safe?
https://facil.io/
Checked on
How we checked
Coverage: complete · 4 of 4 applicable core capabilities
- Antivirus (59 of 93 engines answered): completed
- Google Safe Browsing: completed
- page reading: completed
- page capture: completed
- domain records: completed
- web research: completed
facil.io is the home page of an open-source C web framework with no signs of harm
facil.io presents a free, open-source C micro-framework for building web applications, and its code is hosted on GitHub. The domain is about ten years old. Security checks found no malicious detections, no Safe Browsing warning and a valid encrypted connection. Nothing is sold on the site, and its download and project links point to GitHub. That combination supports a Safe rating.
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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.
Why 90/100
Safe covers scores 85–100. No adverse finding was saved; 4 pushed it up.
What pulled the score down
No adverse finding was saved with this report.
What pushed the score up
- SupportsThe project's code is published in public GitHub repositories.
- SupportsNo malicious or suspicious detections across 93 security engines, and no Safe Browsing warning.
- SupportsThe domain is 3,753 days old.
- SupportsThe saved TLS check found a valid encrypted connection
Community reviews never change the Safety Score.
01 · Investigation Brief
Investigation Brief
facil.io presents a free, open-source C micro-framework for building web applications, and its code is hosted on GitHub. The domain is about ten years old. Security checks found no malicious detections, no Safe Browsing warning and a valid encrypted connection. Nothing is sold on the site, and its download and project links point to GitHub. That combination supports a Safe rating.
Clean technical checks and an established open-source project
None of 93 security engines flagged the site as malicious or suspicious. The browser threat feed returned no warning, and the connection is properly encrypted.
Independent research ties the project to public GitHub repositories for the facil.io framework and its companion C library, cstl. The registrable domain is 3,753 days old.
The page we captured did not show a direct contact email. For an open-source project whose code and contribution guide live on GitHub, this is a minor point.
What visitors actually do on the site
The main call to action is "Download facil.io from GitHub". Other links lead to the examples folder, the original repository and a contribution guide, and none of them involve payment.
The remaining outbound links go to technical references, such as an article on the C10K problem and the Mustache templating site.
Why the score is 90
The saved checks and analysis found no material threat. Coverage remains separate so missing sources cannot be mistaken for clean results.
02 · Security Evidence
Security evidence
Antivirus Engines
0/ 93
No detectionsFresh result
No detections across 59 engines that rated this URL
No antivirus engine that answered raised an adverse result; 34 had no rating for this URL. This is one signal, not a guarantee.
- Malicious
- 0
- Suspicious
- 0
- Total
- 93
All 93 engine results
- 0xSI_f33d - Unrated
- Abusix - Clean
- Acronis - Clean
- ADMINUSLabs - Clean
- AILabs (MONITORAPP) - Clean
- AlienVault - Clean
- alphaMountain.ai - Clean
- AlphaSOC - Unrated
- Antiy-AVL - Clean
- ArcSight Threat Intelligence - Unrated
- AutoShun - Unrated
- Bfore.Ai PreCrime - Unrated
- BitDefender - Clean
- Bkav - Unrated
- BlockList - Clean
- Blueliv - Clean
- Certego - Clean
- ChainPatrol - Unrated
- Chong Lua Dao - Clean
- CINS Army - Clean
- CRDF - Clean
- Criminal IP - Unrated
- CSIS Security Group - Unrated
- CTX AI - Clean
- Cyan - Unrated
- Cyble - Clean
- CyRadar - Clean
- desenmascara.me - Clean
- DNS8 - Unrated
- Dr.Web - Clean
- EmergingThreats - Clean
- Emsisoft - Clean
- Ermes - Unrated
- ESET - Clean
- ESTsecurity - Clean
- Forcepoint ThreatSeeker - Clean
- Fortinet - Clean
- Fortra - Unrated
- G-Data - Clean
- GCP Abuse Intelligence - Unrated
- Google Safe Browsing - Clean
- GreenSnow - Clean
- GreyNoise - Unrated
- Gridinsoft - Unrated
- Guardpot - Unrated
- Heimdal Security - Clean
- Hunt.io Intelligence - Unrated
- IPsum - Clean
- Juniper Networks - Clean
- K7AntiVirus - Unrated
- Kaspersky - Clean
- LevelBlue - Clean
- Lionic - Clean
- Lumu - Unrated
- Malwared - Clean
- MalwarePatrol - Clean
- MalwareURL - Unrated
- Mimecast - Unrated
- Netcraft - Unrated
- OpenPhish - Clean
- Orcapot - Unrated
- PhishFort - Unrated
- Phishing Database - Clean
- Phishtank - Clean
- PREBYTES - Clean
- PrecisionSec - Unrated
- Quick Heal - Clean
- Quttera - Clean
- Rising - Clean
- SafeToOpen - Unrated
- Sangfor - Clean
- Sansec eComscan - Unrated
- Scantitan - Clean
- SCUMWARE.org - Clean
- Seclookup - Clean
- Snort IP sample list - Unrated
- SOCRadar - Unrated
- Sophos - Clean
- StopForumSpam - Clean
- Sucuri SiteCheck - Clean
- Synthient - Unrated
- ThreatHive - Clean
- URLhaus - Clean
- URLQuery - Unrated
- Viettel Threat Intelligence - Clean
- VIPRE - Unrated
- ViriBack - Clean
- VX Vault - Clean
- Webroot - Clean
- Xcitium Verdict Cloud - Clean
- Yandex Safebrowsing - Clean
- ZeroCERT - Clean
- ZeroFox - Unrated
How security vendors categorise this site
- alphaMountain.aiInformation Technology
- BitDefendercomputersandsoftware
- Forcepoint ThreatSeekerinformation technology
- Googletechnology
Each vendor’s own label for the site, saved with the antivirus result. Labels are separate from the engine verdicts above and can disagree with each other.
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
facil.io
What the captured page showed
1 observation- 01
facil.io
What the page says about itself
What the site says about itself, quoted from the pages we read. The site wrote these words; they are not our findings.
- Page title
facil.io - The C Web Application Framework
- Meta description
facil.io is an evented network library and web framework in C: HTTP and WebSocket servers, Pub/Sub, Redis, JSON and TLS, built for high concurrency.
Pages we read
- Main page/Read
03 · Investigation Story
Investigation story
What the site claims
facil.io - The C Web Application Framework
What we observed
The page content was captured and checked alongside 59 antivirus results.
What independent research found
2 external findings were saved and compared with the page evidence.
What remains unverified
The checks completed, but ownership, business claims, and future site behavior can still change after this snapshot.
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
- 01No malicious or suspicious detections across 93 security engines, and no Safe Browsing warning.
- 02The domain is 3,753 days old.
- 03The project's code is published in public GitHub repositories.
Web research findings
Independent findings for facil.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.
- Domainfacil.io
- Redirects tofacil.io
- Hosted byAmazon Data Services Northern Virginia
- Referenceskegel.com · mustache.github.io
Domain Timeline
- Jul 7, 2016Domain registered
First appeared in WHOIS records — 10 years old when this review was saved.
- Oct 16, 2026Saved security review — Rated Safe
This saved scan found no active threat signals in the checks it completed.
facil.io has operated for years with no threat signals in this review — a long, stable track record, though it is never a guarantee on its own.
Contact Verification
Saved contact details can help identify the operator. Their presence supports traceability; it does not prove the business is trustworthy.
- No direct contact email found on the captured page.
- Links to 9 social profiles.
Domain & Encryption
Certificate issued for facil.io.
A shared content-delivery network address answers for many sites, so it is not the site's own server and says nothing about who runs it.
Payment providers the page loads
None seen among the outside domains we saved.
Read from the first 20 outside domains the page loads and the shop platform it uses; the web server and platform rows are under Hosting & Technology. A payment script on the page does not prove the shop accepts that method at checkout, or that you are protected.
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
- Antiviruscomplete
- 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
unknownComplaints, withdrawals, business conduct and commercial traps.
No confirmed evidence in this dimension.
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 93 engines flagged | Completed | No adverse finding | fresh · analysed Oct 16, 2026 |
| Browser protection | No browser threat-list match | Completed | No adverse finding | this scan · Oct 16, 2026 |
| Page content | Page fetched · HTTP 200 | Completed | No adverse finding | this scan · Oct 16, 2026 |
| Visual evidence | 1 visible observation saved with the page capture | Completed | No adverse finding | this scan · Oct 16, 2026 |
| Independent research | 2 independent findings were saved | Completed | No adverse finding | this scan · Oct 16, 2026 |
- Antivirus
- Result0 of 93 engines flagged
- CompletionCompletedFindingNo adverse finding
- Freshnessfresh · analysed Oct 16, 2026
- Browser protection
- ResultNo browser threat-list match
- CompletionCompletedFindingNo adverse finding
- Freshnessthis scan · Oct 16, 2026
- Page content
- ResultPage fetched · HTTP 200
- CompletionCompletedFindingNo adverse finding
- Freshnessthis scan · Oct 16, 2026
- Visual evidence
- Result1 visible observation saved with the page capture
- CompletionCompletedFindingNo adverse finding
- Freshnessthis scan · Oct 16, 2026
- Independent research
- Result2 independent findings were saved
- CompletionCompletedFindingNo adverse finding
- Freshnessthis scan · Oct 16, 2026
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 facil.io legit and safe?
Is facil.io safe to use?
Could a legitimate site like facil.io still be used in a scam?
Has facil.io been flagged by antivirus engines?
Is facil.io on any phishing or malware blacklists?
How old is the facil.io domain?
Does facil.io have a valid SSL certificate?
Where is facil.io hosted?
How often is the facil.io report updated?
08 · Final Verdict
Final verdict
facil.io is the home page of an open-source C web framework with no signs of harm
facil.io presents a free, open-source C micro-framework for building web applications, and its code is hosted on GitHub. The domain is about ten years old. Security checks found no malicious detections, no Safe Browsing warning and a valid encrypted connection. Nothing is sold on the site, and its download and project links point to GitHub. That combination supports a Safe rating.
09 · Community
Community
Are you the owner of facil.io?Verify and reply