Website reputation report

defined.net

Last checked 22 hours ago · Point-in-time assessment

73/100Technical Safety ScoreIndependent technical assessment, not a visitor rating
Captured homepage of defined.net in the current scan
Website screenshot from the current report
● Local security concerns found

What is this website?

Ryan Huber and Nate Brown are the cofounders of Defined and creators of Nebula, the scalable overlay networking tool they built and deployed to connect tens of thousands of servers while working together at Slack.

Local security concerns foundReview the observed form or connection issues below. These findings do not establish malware or phishing.

73/100Safety Score
75%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History95 Infrastructure92 Website Security95 Security Hygiene55 Transparency59 Reputation50 Operational Stability84
Trust RadarEight observed factors. Select one to inspect its evidence.

How to read this report

Safety Score evaluates observed signals. Evidence Confidence measures how complete, direct, fresh, and consistent those signals are.

No automated scan can guarantee that a website is safe.

Current report context

What changed since the last scan

  • No earlier report to compare
What this scan could verify · 6 observed, 0 unavailable
DNS observed
Registration lookup observed
Network observed
TLS observed
Website response observed
Website content observed

Unavailable and unperformed checks are not clean results. The detailed evidence below remains the source for each conclusion.

Report an inaccuracy in this report →

Independent evidence brief

What we observed about defined.net

Updated Oct 3, 2026

The latest scan examined 10 public pages on defined.net. Website descriptions below come from the site itself. Registration, connection and threat findings were checked separately.

Purpose and visible content

On its About page, the site says: Ryan Huber and Nate Brown are the cofounders of Defined and creators of Nebula, the scalable overlay networking tool they built and deployed to…

Registrar and domain history

Registered on Dec 21, 1999. Registrar: Amazon Registrar, Inc..

Recorded expiry date: Dec 21, 2026. Registry data can change.

Connection and hosting evidence

The checked homepage returned HTTP 200 in about 2000 ms.

A valid TLS certificate was observed, expiring Jan 17, 2027.

Threat checks and score context

External malware-provider coverage was unavailable. The report does not treat this missing check as a clean result.

Safety Score: 73/100. Evidence Confidence: 75%. These measure different things.

Community reviews of defined.net

Visitor experiences are separate from the independent technical Safety Score.

No approved visitor reviews yet. Visitor opinions remain separate from the technical Safety Score.

Public content profile

Pages reviewed on defined.net

10 of up to 10 pages

We sampled public pages from this website to understand its subject and contact paths. The titles and short descriptions below come from the website itself. They are not endorsements or independent safety findings.

Hashtags found on the website: #1862 . These are site-supplied labels, not search rankings.

Defined NetworkingNebula Overlay Networks: Extend network access with on-demand, encrypted tunnels between any hosts on any network. Defined Networking is the company behind the Nebula open-source p About us - Defined NetworkingRyan Huber and Nate Brown are the cofounders of Defined and creators of Nebula, the scalable overlay networking tool they built and deployed to connect tens of thousands of servers Contact us - Defined NetworkingGet in touch with the team at Defined Networking. We're happy to help with sales, support, or feedback, and we read every message. Secure remote access without a VPN - Defined NetworkingSecure remote access to your servers, dashboards, and databases. Zero trust, end-to-end encrypted, and built on open-source Nebula. No VPN, no inbound ports. Drop-in encryption for every connection - Defined NetworkingEncrypt traffic between your servers, containers, and devices automatically. Zero trust, end-to-end encrypted, and built on open-source Nebula. No per-app TLS, no certificate wrang Multi-cloud networking made simple - Defined NetworkingConnect hosts across AWS, GCP, Azure, and on-prem with one secure overlay network. Zero trust, end-to-end encrypted, and built on open-source Nebula. No transit gateways, no peerin Secure networking for IoT and fleet devices - Defined NetworkingConnect and secure IoT and fleet telematics devices on one overlay network. Zero trust, end-to-end encrypted, and built on open-source Nebula. A lightweight agent that runs on cons Blog - Defined NetworkingLatest news from Defined Networking What's in a name? Giving Nebula hosts URLs - Defined NetworkingUse the Defined Networking API to sync your Nebula host names to your DNS provider, so your hosts are reachable by name from anywhere. Bringing Nebula connectivity to everyone - Defined NetworkingA free, hosted managed lighthouse is now part of every new Managed Nebula network — sign up, enroll two machines, and they'll be instantly connected.

Public page evidence

Topics and keywords observed on defined.net

12 phrases

These phrases were extracted locally from sampled public page metadata. They are observations, not search-volume or ranking estimates.

networkingTitle, Meta description10 sampled pages
nebulaTitle, H1, Meta description8 sampled pages
secureTitle, H1, Meta description4 sampled pages
everyTitle, H1, Meta description5 sampled pages
open sourceMeta description5 sampled pages
hostsTitle, H1, Meta description4 sampled pages
built on openMeta description4 sampled pages
end to endMeta description4 sampled pages
zero trust endMeta description4 sampled pages
networkH1, Meta description4 sampled pages
encryptedMeta description5 sampled pages
end encryptedMeta description4 sampled pages

At a glance

Key findings

✓

Report is current

The displayed evidence comes from the published immutable scan.

i

Confidence is separate

Unavailable evidence is shown as missing and never counted as clean.

!

Verify before sensitive actions

Check the exact URL and context before payments, credentials, or downloads.

Fully explainable

Why this score?

Versioned weights
Threat IntelligenceWeight 25%
55/100

Threat providers were unavailable. The neutral uncertainty baseline is not a clean verdict.

Domain HistoryWeight 10%
95/100

Domain registration age and expiry were checked.

InfrastructureWeight 10%
92/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
95/100

Observed certificate validity and TLS protocol were checked.

Security HygieneWeight 15%
55/100

Observed security header values were checked for basic protective settings. Empty values, disabled HSTS and unrecognized values receive no credit. This is not a complete browser-policy validation.

TransparencyWeight 5%
59/100

Observed site metadata and About page were checked. Publisher-supplied details are not independently verified.

ReputationWeight 5%
50/100

Popularity is weak context, not proof of safety. Unranked sites use a neutral baseline.

Operational StabilityWeight 15%
84/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLNo signature match in the sampled HTML
Engine version1.5.4
Signature database date (UTC)2026-10-03T06:24:16+00:00
HTML bytes submitted197,397
Phishing.Database · exact hostnameNot listed in this snapshot
Feed downloaded (UTC)2026-10-03T18:00:09+00:00
Hosts in local snapshot386,082

Sampled scripts and pages

Resource analysis incomplete

6 resources checked · 5 script links observed on the homepage. Partial resource coverage.

ClamAV inspects the fetched homepage HTML on our server. New scans also sample up to four linked scripts and two collected internal pages, with size and time limits. Scripts are not executed. Other downloads, private server files and logged-in pages remain outside this check. A signature match needs investigation and can be a false positive. No match is not a whole-site safety guarantee.

Exact hostname lookup uses a downloaded Phishing.Database snapshot. It does not send this domain to an external lookup API or mark sibling subdomains as harmful. Not listed does not mean safe. Snapshot age is download age, not proof that every entry was recently revalidated.

Homepage HTML only · Eight local rule families · local-security-v2

Checks use the fetched page and redirect chain. Scripts are not executed, forms are not submitted, and linked files are not downloaded. This is not a malware clearance.

Page resource inventory

Linked scripts5
Inline scripts7
Embedded frames1
External script hosts1

Counts describe the sampled HTML, not every resource loaded by the browser. External resources are common and are not automatically harmful.

Redirect from HTTPS to HTTPSecurity concern · 1

The observed redirect chain includes a downgrade to an unencrypted connection. Connection security is assessed separately.

External threat intelligence

Provider coverageNot checked

Local checks do not query external reputation databases. An unavailable check is never a clean result.

Registration

Domain information

Public RDAP observation
Canonical domaindefined.net
RegistrarAmazon Registrar, Inc.
RegisteredDec 21, 1999
Domain age26 years
ExpiresDec 21, 2026
Registry statusesclient transfer prohibited
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address13.227.231.16
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNCloudflare
Web application firewallNot detected

At a glance

Infrastructure summary

Observed during this scan

A compact view of the connection, DNS and security surface. These observations describe what the scanner could verify at scan time and do not prove ownership or ongoing availability.

HTTP response200 · https://www.defined.net/
Endpoint13.227.231.16
NetworkUnavailable
CDN and WAFCloudflare · Not detected
DNS surface17 records · 4 nameservers · 5 mail exchangers
Protection signals2 security headers · 4 technologies · DNSSEC unknown

Page telemetry

Observed page statistics

Safe metadata only

These counters describe the fetched response and sampled HTML. Script counts describe references in the markup, not a complete browser network log. Cookie counts cover observed response headers.

Response size197,397 bytes
HTTP check duration2,000 ms
Cookies observedUnavailable
Script resources5 · 1 external hosts
Frames and sampled checks1 frames · 6 resources checked

Encrypted transport

TLS certificate

Valid when observed
StatusValid when observed
ProtocolTLSv1.3
IssuercountryName=US, organizationName=Amazon, commonName=Amazon RSA 2048 M04
Valid fromDec 19, 2025
Valid untilJan 17, 2027
Certificate namesdefined.net · www.defined.net

Resolution

DNS footprint

DNSKEY status unknown

DNSKEY presence does not verify the DNSSEC signature chain. Missing records can mean no record was returned or the lookup was unavailable.

A13.227.231.16TTL —
A13.227.231.55TTL —
A13.227.231.84TTL —
A13.227.231.91TTL —
NSns-1345.awsdns-40.orgTTL —
NSns-1877.awsdns-42.co.ukTTL —
NSns-266.awsdns-33.comTTL —
NSns-819.awsdns-38.netTTL —
MX1 aspmx.l.google.comTTL —
MX10 alt3.aspmx.l.google.comTTL —
MX10 alt4.aspmx.l.google.comTTL —
MX5 alt1.aspmx.l.google.comTTL —
MX5 alt2.aspmx.l.google.comTTL —
TXTgoogle-site-verification=OQEPzrOt26Mt-pU0p-FwA2JoMFxisigJXdh4kO0TxQ0TTL —
TXThcp-domain-verification=e0a4c034a6e32be727501620b61aade63629a1987fee21c406db9ec7ba1f805bTTL —
TXTMS=614CFC1D71CFB55BF678C227DA9A0AEEE9CB6464TTL —
TXTv=spf1 include:_spf.google.com include:mail.zendesk.com ~allTTL —

DNS observations · no external lookup API

Domain email protection

Exact-host SPF and DMARC observations help the owner investigate email impersonation risks. They are separate from website malware checks and do not change the Safety Score.

SPFPolicy record observed, not fully validated
DMARCPolicy record observed, not fully validated

What to do next

Review the records with your mail administrator. Inventory legitimate senders and test SPF and DKIM alignment before enforcing a stricter DMARC policy. Fix duplicate records and investigate overly permissive SPF rules.

This bounded check does not send email, probe SMTP, evaluate recursive SPF includes, verify DKIM signatures or apply organizational-domain DMARC inheritance. A missing subdomain record does not prove that no inherited protection exists. A DNS timeout is unknown, not an absent record. A policy record is not proof that messages authenticate successfully.

Responsible disclosure

security.txt

RFC 9116 observation
StatusPublished and readable
Security contacts1
Policy linkObserved
ExpiryValid when observed

This is a public vulnerability-reporting contact file. Its presence does not prove that the website is safe and does not change the independent Safety Score.

Browser protections

Security headers

2 observed
referrer-policypresent strict-origin-when-cross-origin
x-content-type-optionspresent nosniff

Response headers

Cookie protections

Passive observation

No Set-Cookie header was observed on the sampled homepage response. Other pages may set cookies separately.

Detected stack

Technologies

Cloudflare 98% Google Analytics 94% Google Tag Manager 96% Tailwind CSS 72%

Versions are shown only when publicly exposed by the page or response headers. An observed version is not, by itself, proof of a vulnerability.

JavaScript library advisories

4 sampled JavaScript files checked locally with Retire.js. Database snapshot: 2026-10-03T02:40:06.283Z.

No supported library version was identified in the sampled files. This does not establish that the scripts are safe.

A version match is not proof that the website is infected or that an issue is exploitable here. Owners should review the advisory, check whether their code is affected and test an update. Up to four external script files are sampled, not every dependency, inline script or dynamically loaded resource.

About this website

What the site says about itself

Ryan Huber and Nate Brown are the cofounders of Defined and creators of Nebula, the scalable overlay networking tool they built and deployed to connect tens of thousands of servers while working together at Slack.

View the site's About page ↗

This is publisher supplied information. The independent safety findings are shown separately.

Structured facts

Website identity & response

Public page metadata
Page titleDefined Networking
First headingConnectivity that just works
DescriptionNebula Overlay Networks: Extend network access with on-demand, encrypted tunnels between any hosts on any network. Defined Networking is the company behind the Nebula open-source project.
Canonical URLhttps://www.defined.net/
Final URLhttps://www.defined.net/
HTTP response200 · text/html; charset=utf-8 · 2000 ms
Languageen
Structured typesOrganization
Page page detectedhttps://www.defined.net/solutions/remote-access/About page detectedhttps://www.defined.net/about/Contact page detectedhttps://www.defined.net/contact/
present100% evidence confidence
1100% evidence confidence
1100% evidence confidence
1100% evidence confidence
1100% evidence confidence
1100% evidence confidence
en100% evidence confidence
1100% evidence confidence
1100% evidence confidence
Local headers.csp present100% evidence confidence
1100% evidence confidence
1100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence
Local headers.hsts present100% evidence confidence
17100% evidence confidence
4100% evidence confidence
5100% evidence confidence
unavailable100% evidence confidence
Dns consistency.cname present100% evidence confidence
4100% evidence confidence
Local headers.permissions policy present100% evidence confidence

Connection path

Redirect chain

2 recorded hops
Hop 1http://www.defined.net/
Hop 2https://www.defined.net/

The chain is shown exactly as observed by the scanner. A redirect is not itself a malware finding, but unexpected domains or an HTTP downgrade deserve review.

Premium monitoring

Catch downtime and security changes automatically

Regular checks, availability history, and alert emails are reserved for Premium websites. Free reports remain point-in-time scans and do not create recurring server work.

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Compared with the previous scan

What changed

A comparison will appear after the next completed scan.

Explainable matching

Digital fingerprint

fingerprint-v1
rapid-beacon-mesh-850

Comparable components help find technically related websites. A match does not prove common ownership.

DnsHashed private comparison value
TechnologiesHashed private comparison value

Material changes only

Change history

Show change history

No meaningful changes recorded yet.

Website icon for defined.net

Visual evidence

Website screenshot

Screenshot of defined.net
Captured once in an isolated browser during this scan. Visual tint is an interface overlay. The original evidence is not duplicated.

For site owners

Show your verified trust report

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WebsiteVirusScanner trust badge preview

Use the current report link so visitors can verify the evidence. A badge is a transparency signal, not a paid ranking boost.

Questions about defined.net

FAQ

Still have questions? Contact us →
Is defined.net safe to visit?

The latest Safety Score is 73/100 with 75% Evidence Confidence. This is a point-in-time assessment of observed technical signals, not a guarantee. Check the exact address and avoid entering payment details if anything looks unusual.

Did the scan detect malware on defined.net?

ClamAV found no signature match in the sampled homepage HTML. External scripts, downloads and private server files were not checked. This is not a whole-site malware clearance.

When was defined.net registered?

The public registry record shows Dec 21, 1999. Registration details may be privacy-protected or updated later.

Did defined.net have a valid TLS certificate?

The scanner observed a valid TLS certificate using TLSv1.3. A valid certificate alone does not establish that the site is safe.

How does defined.net describe itself?

The website's About page describes its purpose in the report above. This is publisher-supplied information and is separate from independent security findings.

Can a paid listing change this website's score?

No. Premium placement and owner-supplied pages are labelled separately. Technical evidence, the Safety Score and moderation decisions remain independent.

Share your experience with defined.net

Community reviews are moderated and remain separate from the technical Safety Score.

Write review →