Online Network Tools for Network Engineers

Here are some useful tools for network engineers to use. All are available online for free.

• IP Subnet Calculator

IP Subnet Calculator

• Traceroute

Traceroute.org

Free Traceroute Test (Uptrends)

Free Network Trace Test (dotcom-monitor)

• GeoIP Lookup

IP2Location

GeoIP2 Database Demo (MaxMind)

IPLocation.net

GeoIP Lookup Tool (UltraTools)

• What is My IP Address?

WhatIsMyIP.com

What is my IP? (Uptrends)

* On macOS, you should be able to check your public IP address by the following command on the Terminal.

curl ifconfig.me

• OUI (MAC addresses) Lookup Tool

Wireshark OUI Lookup

• DNS Lookup Tools

DNS Lookup Tool (UltraTools)

DNS health check : find bugs on your domain (DnsChecker.org)

Check DNS Propagation (DnsChecker.org)

DNS Propagation Checker (whatsmydns.net)

• Whois Lookup

whois.domaintools.com

ICANN Lookkup

Whois.com

• Internet Speed and Latency Test

SPEEDTEST (Ookla)

SpeedOf.Me

TestMy.test

Xfinity Speed Test (Comcast)

FAST (Netflix)

• Cloud Speed Test

▶ Amazon AWS

Amazon Web Services Network Test (CloudHarmony)

AWS Cloud Ping

AWS Ping Test (Latency)

AWS latency test

Amazon S3 Transfer Acceleration Speed Comparison tool (AWS)

AWS Global Accelerator - Speed Comparison (AWS)

▶ Microsoft Azure

Azure Latency Test

Azure Speed Test 2.0

Azure Ping Test (Latency)

* Microsoft 365 network connectivity test tool

* MS Teams & Sky for Business Network Assessment Tool download

▶ Google GCP

Google Cloud Platform Network Test (CloudHarmony)

Google Cloud Speed Test (TestMy.net)

Measure your latency to GCP regions (gcping.com)

GCP Ping Test (Latency)

Running Connectivity Tests (GCP)

• Website Speed Test

Instantly test your website speed (Dotcom-Monitor)

Test a website's performance

Pingdom Website Speed Test

• Open Port Check Tool

Open Port Check by networkappers

• Data Transfer Conversion Calculator

Megabyte/s to Gigabit/s Conversion

• BGP Looking Glasses

BGP Looking Glasses for IPv4/IPv6, Traceroute & BGP Route Servers

BGP Route Servers list

IPv4 Route Servers, listed by ASN


▶ Hurricane Electric Route Servers
Looking Glass - Hurricane Electric (AS6939)

telnet route-server.he.net
(no password) in Fremont, CA


▶ AT&T Route Servers

telnet route-server.ip.att.net
(username: rviews, password: rviews) in New York

Looking Glass - CenturyLink (AS3356, 3549)

Looking Glass - Cogent (AS174)


▶ GTT Route Servers
Looking Glass - GTT (AS3257)

telnet route-server.ip4.gtt.net
(username: public, password: public)

Looking Glass - Verizon (AS701)

Looking Glass - NTT (AS2194)


▶ Equinix Route Servers

telnet route-views.eqix.routeviews.org
(no password), AS14609


▶ Oregon IX Route Servers

telnet route-views.oregon-ix.net
(username: rviews, password: rviews) in New York


* Tier 1 network (Wikipedia)