Splunk Search

need rex help

vikram1583
Explorer

in my event i want to extract TLD's

i want to extract:
com
news
tech
net
org

please help me with rex?
thanks in advance

Tags (2)
0 Karma

woodcock
Esteemed Legend
0 Karma

sumanssah
Communicator

Try this

(?<TLD>\.\w+?)(?:$|\/)
0 Karma

to4kawa
Ultra Champion
rex field=your_field "(?<TLD>com|news|tech|net|org)"
0 Karma

manjunathmeti
Champion

Hi @vikram1583,

Try this:

| rex "\w*\.(?<tld>[a-z]+)$" 
0 Karma

vikram1583
Explorer

not working

0 Karma

to4kawa
Ultra Champion

not working
hec? what is "TLD" you say?

0 Karma

manjunathmeti
Champion

Please share some raw data.

0 Karma

efavreau
Motivator

@vikram1583 What do your logs look like? Are you extracting from fields that already identified websites or email addresses or do you have a mess in your logs that you need to identify the pattern first and then the TLD? Are these URL's fully qualified, like https://www.example.com/, or are the more like example.com? Do they end at the TLD, or continue with parameters/directories/etc.? Details and a log sample will go a long way in people being able to help you efficiently.

###

If this reply helps you, an upvote would be appreciated.
0 Karma

efavreau
Motivator

@vikram1583 I maintain that this will go better with more details and a log sample. Please edit your question with a sample log (scrub for anything sensitive). Some of these proposed solutions aren't successful against patterns such as:
https://answers.splunk.com/answers/806969/need-rex-help.html (where the valid TLD is com)
www.example.wanggou (where the valid TLD would be wanggou)
etc.

###

If this reply helps you, an upvote would be appreciated.
0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas     Cisco Live 2026 is almost here, and this ...

What Is the Name of the USB Key Inserted by Bob Smith? (BOTS Hint, Not the Answer)

Hello Splunkers,   So you searched, “what is the name of the usb key inserted by bob smith?”  Not gonna lie… ...

Automating Threat Operations and Threat Hunting with Recorded Future

    Automating Threat Operations and Threat Hunting with Recorded Future June 29, 2026 | Register   Is your ...