Internet Toolbox
Internet tools: Networks, servers, code. Geek goodies.
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DNS
Query the Domain Name System (DNS) to translate a domain name into an IP address-
DomainTools Whois
Find out about a domain, including who owns it and their contact information, what server software it runs, usage ranking among many other useful information bits -
Robtex Domain/IP Lookup
Get detailed information about an Internet host. Enter an IP address (64.233.167.99), domain name (google.com), hostname (py-in-f99.google.com), or AS-number (AS15169) to get detailed dns information including reverse dns and forwards, whois information, who hosts the machine, and if it's listed in any RBLs (black lists). -
Wolfram|Alpha
Enter a question or calculation and Wolfram|Alpha uses its built-in algorithms and data to get the answer. A huge set of information and tons of models, methods, and algorithms that make it possible to compute whatever can be computed about anything -
Geektools Dig DNS
Query DNS domain name servers for information about host addresses, mail exchanges, name servers, and related information
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IP Address
Find out who an IP address belongs to, convert IP address to DNS hostname, find the location of an IPv4 or IPv6 address on a map. Includes unix tools like ping, traceroute, nslookup, dig and others-
Robtex Domain/IP Lookup
Get detailed information about an Internet host. Enter an IP address (64.233.167.99), domain name (google.com), hostname (py-in-f99.google.com), or AS-number (AS15169) to get detailed dns information including reverse dns and forwards, whois information, who hosts the machine, and if it's listed in any RBLs (black lists). -
ARIN WHOIS Database Search
ARIN's WHOIS service gives contact and registration information for IP addresses, autonomous system numbers (ASN), organizations or customers that are associated with these resources, and related Points of Contact (POC). Doesn't include info on domain names or military networks. -
PSyon IP Address Converter
Convert an IP address from 8/8/8/8-bit dotted-decimal format (dot-seperated, like 127.0.0.1) to 8/8/16-bit, 8/24-bit, and 32-bit notations in decimal, octal and hexadecimal. -
Wolfram|Alpha
Enter a question or calculation and Wolfram|Alpha uses its built-in algorithms and data to get the answer. A huge set of information and tons of models, methods, and algorithms that make it possible to compute whatever can be computed about anything -
DuckDuckGo
Nice, clean web search results with more privacy than Google, fewer ads and spam. A little known gem. -
just-ping
Check any Internet host's reachability and how much latency there is in communicating with it from 50 locations worldwide
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Ping
Send a packet to a host on the Internet and see if it answers back-
just-ping
Check any Internet host's reachability and how much latency there is in communicating with it from 50 locations worldwide -
Fifi Ping
Ping is commonly used to determine if a given host is 'alive' on the Internet. It will repeatedly send a datagram to a network host to elicit a response from it and show you if, and how long it took to respond. -
Down for Everyone or Just Me
When visiting a a web site produces a 404 or another message, check if it's that site that isn't working (down for everyone) or if it's your Internet service provider (just you). -
WatchMouse
Check a web page's reachability and response time from 10 locations around the world. See how long it takes to look up the site's IP address from DNS, to connect (latency from a location to the site), and to receive the page's text.
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Web Site Information
Get information about any web site, like how popular it is-
Quantcast
Internet ratings service with visitor profiles for millions of websites and services. -
Alexa web site information
Collection of information about a web site, including statistics on web site traffic, usage, popularity, related sites, contact information, mailing address and more -
Quarkbase
Complete information about a website from over 30 data sources from the Internet, including social popularity, traffic, associated people, similar and related sites, domain ownership and registration dates, etc... Popularity factors include Delicious bookmarks, digg, Reddit, StumbleUpon, Google Groups, Yahoo Answers! and Technorari blog reactions and wikipedia links
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Web Development
Tools for web developers-
Down for Everyone or Just Me
When visiting a a web site produces a 404 or another message, check if it's that site that isn't working (down for everyone) or if it's your Internet service provider (just you). -
HTML Code Preview'r

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DomainTools Whois
Find out about a domain, including who owns it and their contact information, what server software it runs, usage ranking among many other useful information bits
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Convert
Convert from one thing to another-
Wolfram|Alpha
Enter a question or calculation and Wolfram|Alpha uses its built-in algorithms and data to get the answer. A huge set of information and tons of models, methods, and algorithms that make it possible to compute whatever can be computed about anything -
Oanda Currency Converter

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Google Docs Viewer
Quickly view PDF documents and PowerPoint PPT presentation files in your browser without needing to install or start their application -
PSyon IP Address Converter
Convert an IP address from 8/8/8/8-bit dotted-decimal format (dot-seperated, like 127.0.0.1) to 8/8/16-bit, 8/24-bit, and 32-bit notations in decimal, octal and hexadecimal.
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