# IPCheck.ing

> Open-source IP toolbox: lookup, connectivity tests, WebRTC and DNS leak detection, speed test, MTR, Whois, ASN history, browser fingerprint, and persona check.

Source code: https://github.com/jason5ng32/MyIP
Languages: en, zh, fr, ru

# Tools

## IP Lookup

Show your public IPv4 and IPv6 addresses with ASN, geolocation, and ISP organization, sourced from multiple providers in parallel.

**When to use**
- Verify which IP your ISP, VPN, or proxy is presenting
- Diagnose a wrong-country geolocation problem
- Confirm IPv6 connectivity is working end-to-end

**What you get**
- IPv4 address (and IPv6 when reachable)
- ASN number and organization name
- Country, region, city, and approximate coordinates
- Side-by-side results from several IP-data providers for cross-checking

Open: https://ipcheck.ing/

## Query Any IP

Look up ASN, geolocation, and organization for any IPv4 or IPv6 address — not just your own.

**When to use**
- Investigate where an unfamiliar IP in your logs originates
- Cross-check what a remote service sees for a given address
- Compare data from several IP-intelligence providers

**What you get**
- Same multi-provider profile as the homepage IP lookup, for an arbitrary address
- ASN history and BGP announcement timeline for the prefix

Open: https://ipcheck.ing/

## Connectivity Test

Test whether common global services (Google, Cloudflare, GitHub, OpenAI, etc.) are reachable from your network.

**When to use**
- Diagnose a "site won't load" complaint without leaving the browser
- Spot patterns suggesting a DNS, TCP, or TLS block
- Verify a VPN or proxy actually routes the targets you care about

**What you get**
- Per-target reachability status and round-trip timing
- Visual grouping by region/category so block patterns stand out

Open: https://ipcheck.ing/

## WebRTC Leak Test

Detect IPv4 and IPv6 addresses leaked by your browser through WebRTC, including local network addresses.

**When to use**
- Audit whether a VPN is leaking your real IP via WebRTC
- Check if a privacy extension or mDNS hostname obfuscation is effective
- Verify enterprise privacy settings disable WebRTC IP exposure

**What you get**
- Public IPv4 / IPv6 visible via WebRTC
- Local (RFC1918) addresses exposed to the page
- Whether the leak matches or differs from your reported public IP

Open: https://ipcheck.ing/

## DNS Leak Test

Identify which DNS resolvers your traffic actually uses by triggering lookups against unique test domains.

**When to use**
- Confirm a VPN is routing DNS through its own resolvers, not your ISP's
- Detect a misconfigured system-level DNS that bypasses the tunnel
- Inspect DNS-over-HTTPS / DNS-over-TLS resolver attribution

**What you get**
- List of resolver IPs that answered the test queries
- ASN and country for each resolver
- Whether the resolver matches your egress network

Open: https://ipcheck.ing/

## Speed Test

Measure download, upload, latency, and jitter against the Cloudflare speedtest backend.

**When to use**
- Benchmark a new line, router, or VPN configuration
- Reproduce an "internet feels slow" complaint with numbers
- Compare wired vs. Wi-Fi or different DNS / VPN setups

**What you get**
- Download and upload throughput (Mbps)
- Idle and loaded latency, jitter, and packet loss estimates

Open: https://ipcheck.ing/

## Global Ping Test

Ping a host from multiple Globalping probes worldwide to see latency from different regions.

**When to use**
- Compare latency to a service from several continents
- Validate that a CDN is anycasting traffic to nearby PoPs
- Spot regional reachability problems before users report them

**What you get**
- Round-trip time per probe with packet-loss percentage
- Probe location (country, city, network) for each result

Open: https://ipcheck.ing/tools/pingtest

## Global MTR Test

Run an MTR (combined traceroute and ping) from multiple Globalping probes worldwide.

**When to use**
- Localize where in the path a high-latency or packet-loss hop sits
- Compare routing paths from different regions to the same destination
- Investigate cross-border peering and transit choices

**What you get**
- Per-hop latency, jitter, and loss for each probe
- AS-path information per hop where available

Open: https://ipcheck.ing/tools/mtrtest

## Proxy Rule Test

Test which proxy rule a given domain or IP would match in rule-based clients (Clash, sing-box, Surge style).

**When to use**
- Debug why a specific domain is taking the wrong proxy outbound
- Validate a freshly written rule set before deploying it
- Spot rule overlaps and ordering problems

**What you get**
- Matching rule and the outbound it points to
- Resolved IP / ASN / country for the input

Open: https://ipcheck.ing/tools/ruletest

## DNS Resolver

Query DNS records (A, AAAA, MX, TXT, NS, CNAME) for any domain across multiple resolvers in parallel.

**When to use**
- Compare answers from different public resolvers (1.1.1.1, 8.8.8.8, etc.)
- Investigate split-horizon or geographic DNS responses
- Verify DNS propagation after a record change

**What you get**
- Per-resolver answers with TTL
- Side-by-side diff so divergent answers are obvious

Open: https://ipcheck.ing/tools/dnsresolver

## Censorship Check

Test whether a website is reachable from regions with known internet restrictions.

**When to use**
- See if a site is blocked in mainland China, Iran, Russia, etc.
- Decide whether to set up a regional mirror or alternate domain
- Confirm whether a reported block is regional or global

**What you get**
- Per-region reachability verdict for the target URL
- Indicator of which censorship surface (DNS, TCP, TLS) is blocking

Open: https://ipcheck.ing/tools/censorshipcheck

## Whois Lookup

WHOIS / RDAP lookup for domains and IPs, with automatic RDAP fallback for new gTLDs.

**When to use**
- Find the registrar, registration date, and expiry of a domain
- Identify the holder and abuse contact for an IP block
- Investigate a suspicious domain or IP for due diligence

**What you get**
- Registrar / registry data, name servers, registration and expiry dates
- For IPs: allocated organization, abuse contact, and netblock range

Open: https://ipcheck.ing/tools/whois

## MAC Vendor Lookup

Look up the manufacturer (OUI) for a MAC address.

**When to use**
- Identify an unknown device on your local network
- Cross-reference DHCP leases against expected hardware vendors
- Spot spoofed or randomized MAC addresses

**What you get**
- Vendor / manufacturer name for the OUI prefix
- Whether the address is locally administered or random

Open: https://ipcheck.ing/tools/macchecker

## IP Calculator

Parse an IPv4 or IPv6 address, CIDR, range, prefix list, or integer into subnet fields, notations, and IANA block labels.

**When to use**
- Carve a LAN or VPN prefix into network, broadcast, usable hosts, and smaller subnets
- Collapse an ACL range or a list of prefixes into the fewest CIDR blocks
- Decode an obfuscated, hex, or integer IP from a log or URL back to dotted form
- Inspect an IPv6 address for type, embedded IPv4, Teredo, or an EUI-64 MAC

**What you get**
- Network, broadcast, netmask, wildcard, first/last host, usable count, and reverse-DNS zone
- Decimal, hex, octal, binary, PTR, and browser-accepted obfuscated spellings
- IPv6 type details (embedded IPv4, Teredo, ULA, EUI-64 MAC) and the matching IANA special-purpose block
- Aggregated CIDRs for a range or prefix list; optional split into smaller subnets

Open: https://ipcheck.ing/tools/ipcalculator

## Browser Info

Show your browser fingerprint: user agent, languages, timezone, GPU, screen, and stable fingerprint hash.

**When to use**
- Audit how identifiable your browser is for fingerprinting purposes
- Verify a privacy hardening change actually altered the fingerprint
- Reproduce a bug report that depends on UA / GPU specifics

**What you get**
- Parsed user agent (browser, OS, version)
- Detected GPU, screen resolution, color depth, timezone, language list
- Stable browser-fingerprint hash for tracking-resistance comparison

Open: https://ipcheck.ing/tools/browserinfo

## Online Security Checklist

Interactive checklist of personal online privacy and security hygiene items, with progress tracking.

**When to use**
- Run a self-audit on account security, device, and network hygiene
- Onboard a less technical friend or family member with concrete steps
- Track progress as you work through hardening tasks

**What you get**
- Categorized checklist (accounts, devices, network, data)
- Per-item context and recommendations

Open: https://ipcheck.ing/tools/securitychecklist

## Invisibility Test

Run a battery of proxy- and VPN-detection checks against your connection and score how identifiable your disguise looks to a website.

**When to use**
- Audit how anonymous your VPN or proxy actually appears to a target service
- See which specific signals (IP blocklists, header anomalies, fingerprint, IP correlation) expose you
- Compare different VPN / proxy / Tor configurations side by side

**What you get**
- Per-check result with a short analysis of why each signal triggered
- Overall "looks like a proxy" and "looks like a VPN" probability scores
- Identified test IP and the evidence trail for each verdict

Open: https://ipcheck.ing/tools/invisibilitytest

## Service Status

Check the live operational status of popular services (Claude, OpenAI, Cursor, Notion, GitHub, Cloudflare, ElevenLabs, LangChain) in one place.

**When to use**
- Decide whether an outage is on your end or the provider's before debugging
- Watch several AI and developer services' uptime from a single view
- Inspect which sub-component is degraded and review recent incidents

**What you get**
- Per-provider operational indicator (operational, minor, major, critical, maintenance)
- Expandable per-provider sub-service component statuses
- Recent incident history with date, severity, and lifecycle status

Open: https://ipcheck.ing/tools/servicestatus

## In-depth DNS Leak Test

Capture every recursive resolver exit IP your browser actually uses (typically 20–40 per run), with EDNS Client Subnet (ECS) and DNSSEC support analysis.

**When to use**
- Get a complete picture of your DNS chain, not just the first resolver
- Check whether resolvers forward a prefix of your real IP upstream via EDNS Client Subnet
- Verify whether the resolvers in your path validate DNSSEC

**What you get**
- Full list of recursive resolver exit IPs observed for your session
- Per-resolver ASN, country, ECS support, and DNSSEC validation status
- Field reference explaining ECS, DNSSEC, and other columns

Open: https://ipcheck.ing/tools/enhanceddnsleaktest

## In-depth Persona Check

Compare the persona sites actually see (IP country, time zone, languages, fonts, keyboard) against a chosen country's local profile.

**When to use**
- Check whether a VPN or proxy setup is actually read as a local of a chosen country
- Pinpoint which signals (time zone, language, fonts, WebRTC, DNS) contradict that persona
- Tell "proxy undetected" (Invisibility Test) apart from "looks like a local of this country"

**What you get**
- Overall A–D grade of how local the persona looks
- Per-check verdict (match, mismatch, leak, internally inconsistent) with expected vs actual values
- How-to-fix notes for each failing signal; optional GPS country and card-issuer country

Open: https://ipcheck.ing/?tool=personacheck