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MyNet
What Is My IP?IPv6 Test
Speed TestSoon
DNS
DNS LookupDNS PropagationDNS Health CheckerSPF Analyzer
MX LookupSoon
PTR LookupCAA Record
NS LookupSoon
SOA RecordSoon
SRV RecordDNS TraceDNS PrivacyDANE / TLSADNSSEC CheckerSPF BuilderDKIM GeneratorZone DiffPTR Zone Generator
Calculators
Subnet CalculatorCIDR Range ViewerVLSM CalculatorVLAN PlannerBandwidth CalcIPv6 Subnet CalcIP ↔ BinarySupernet CalcCIDR MergeCIDR to IP RangeCIDR SplitIPv4 → IPv6CIDR OverlapFree IP Space FinderDHCP CalculatorMTU Calculator
Lookup
WHOIS LookupDomain Age CheckerSubdomain FinderIP GeolocationASN / BGP LookupIP Blacklist CheckReverse IP LookupMAC Address LookupBGP Prefix LookupRPKI / ROA Check
Email
Email InspectorDKIM CheckerEmail HeadersSMTP TestSMTP TLS CheckMX Health CheckEmail SecurityDMARC Generator
Temp MailSoon
Testing
Is It Down?SSL/TLS CheckerOpen Port CheckerOG Tag CheckerOCSP CheckerPing / LatencyHTTP InspectorRedirect ChainCSP AnalyzerTech Stack CheckerBetaTracerouteBetaHTTP/2 + HTTP/3robots.txt ViewerSSL Cert DecoderBanner GrabberWebSocket TesterCORS TesterHTTP TimingStructured Data
PWA ManifestSoon
SEO AuditorSoon
Security
One-Time SecretHash GeneratorPassword StrengthSecurity.txtCT Log SearchAXFR Zone TestHTTP Sec ScoreWebRTC Leak TestIP Reputation
DevKit
JSON FormatterYAML FormatterText CompareBase64 / URL EncodeJWT DecoderRegex TesterUnix TimestampCron BuilderUUID / ULIDPunycode / IDNBase ConverterACL Generator
Frontend
Color ToolkitSoon
CSS Unit ConverterSoon
Gradient GeneratorSoon
cURL BuilderURL ParserURL Encoder/DecoderHTTP Status Codes
Cloud
Cloud VPC PlannerCloud IP RangeSecurity GroupsIAM AnalyzerK8s CIDR PlannerFirewall BuilderHCL FormatterEgress Cost CalcCloud DNS Zone
VM Cost EstimatorSoon
Virtualization
Proxmox Net ConfigVMware Port GroupHyper-V vSwitchVXLAN VNI Planner
NSX-T SegmentSoon
KVM Net ConfigSoon
XCP-ng NetworkSoon
OSINT
Phone InspectorSoon
Disposable EmailSoon
Tor Exit NodeSoon
VPN/Proxy DetectSoon
Domain ReputationSoon
Typosquat DetectSoon
DevOps
GitHub ActionsDockerfile Gendocker-composeArgoCD AppK8s Manifests
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VLANlab API Keys

1.60.193e675

VLANlab API

All 100+ tools are available as a JSON API. Free API keys unlock 1,000 requests per day with no account required.

Rate limits

No key (IP-based)
100 req / hour
Browser use only
Free API key
1,000 req / day
Scripts, pipelines, CI

Get a free API key

Enter your email to generate a key instantly. No password, no verification email. Save the key when it appears.

How to use your key

Pass the key via header (recommended) or query parameter:

Via header (recommended)
curl -H "X-API-Key: YOUR_KEY" "https://vlanlab.com/api/v1/dns?name=example.com"
Via query parameter
curl "https://vlanlab.com/api/v1/dns?name=example.com&key=YOUR_KEY"
Check usage
curl -H "X-API-Key: YOUR_KEY" "https://vlanlab.com/api/v1/keys/info"

Example endpoints

Every tool on VLANlab has a matching API endpoint. Full reference at vlanlab.com/api-docs.

/api/v1/dns?name=example.com&type=MXDNS lookup
/api/v1/whois?domain=example.comWHOIS lookup
/api/v1/ssl?host=example.comSSL certificate check
/api/v1/ip-geo?ip=8.8.8.8IP geolocation

Response format

Every endpoint returns the same JSON envelope:

{
  "ok": true,
  "success": true,
  "tool": "dns",
  "version": "1",
  "data": { ... }
}

// On error:
{
  "ok": false,
  "success": false,
  "error": { "code": "RATE_LIMIT_EXCEEDED", "message": "..." }
}