• Border Gateway Protocol (BGP)

    • ARIN
    ARIN Whois/RDAP

    Search ARIN for IP number resources, organizations, and other entities.

     RADb
    RADb

    Search RADb for IP number resources, organizations, and other information.

    CF
    Cloudflare RPKI Route Validator

    Query Cloudflare's RPKI portal to validate if a route has a covering ROA.

     CR
    Hurricane Electric Route Filtering

    Query Hurricane Electric's route filters for accepted/rejected prefixes.

     HE
    Hurricane Electric Looking Glass

    Query Hurricane Electric's network for IP routes.

     Cogent
    Cogent Looking Glass

    Query Cogent's network for IP routes.

     Telia
    Arelion (Twelve99) Looking Glass

    Query Arelion's network for IP routes.

     I2
    Internet2 Looking Glass

    Query Internet2's network for IP routes.

  • General Connectivity

    • twbs
    Cloudflare Internet Speed Test

    Test bandwidth, latency, and other network statistics to Cloudflare servers.

     twbs
    ping.pe

    Ping, traceroute, MTR, and other tests from servers around the world.

     twbs
    MXToolbox Blacklist Check

    Check an IP or domain against common web and email blocklists.

  • Domains and DNS

    • twbs
    ICANN Whois

    Query ICANN for domain registration information.

     twbs
    whatsmydns.net

    Verify propagation of DNS records to servers around the world.

     twbs
    Security Trails

    Query DNS records and view historical changes.

  • Diagnostic Software

    • PP
    Wireshark

    Industry standard packet capture and analysis client.

     PP
    PingPlotter

    Visualize network path, latency, jitter, and other statistics.

     GH
    WinMTR

    MTR client for Windows machines.

  • Miscellaneous

    • MVL
    MACVendorLookup OUI Lookup Tool

    Search by MAC address or OUI to locate vendor information.

     PP
    Wireshark OUI Lookup Tool

    Search by MAC address, OUI, or description to locate vendor information.

     PP
    Fiber Loss Calculator

    Calculate fiber span loss based on length, fiber type, splice count, etc.

     CR
    CIDR Report

    Statistics and reporting on the full internet routing table.