GCLID Decoder

Free Google Click ID Decoder

Decode GCLID just in seconds. Add your GCLID parameter and get your results.

Extract timestamp from the GCLID

Paste your Google Click ID and get the details on Char length, timestamp, GMT date, and local date.

Analyze the source of the traffic

Check the time that users visited your website. If the time matches your ad click, they came from the ad. If not, they used a bookmark.



Char Length




GMT Date

Mon, 17 Oct 2022 21:18:58 GMT

Local Date (Your timezone)

Tue Oct 18 2022 00:18:58 GMT+0300 (GMT+03:00)

What is the GCLID parameter?

The Google Click Identifier (GCLID) is a unique tracking parameter automatically appended to URLs when users click on a Google Ad. This identifier makes it easier to understand the journey and interactions of potential customers. Therefore, marketeers can gain valuable insight into which advertisements lead to clicks by dissecting the GCLID. Moreover, the click identifier doesn’t exist only at Google. There are also Facebook, Microsoft, and other versions of it—known as FBCLID and MSCLID, etc.

What does the GCLID parameter and its value represent?

The GCLID parameter is encoded in Protocol Buffers, and then in a variant of Base64. Protocol Buffers (protobuf) is a serialization format developed by Google. It’s not human-readable, a binary format. And it doesn’t store the names of fields (just a numeric ID).

Why decode your GCLID?

Google Analytics gives you average data about visitor clicks and location, but some details are hidden, making the statistics incomplete. By combining this with your data, you can get more accurate insights. Extracting information from the GCLID lets you analyze your traffic more thoroughly.

  • There are two formats for GCLIDs — short and long. For short parameters, GCLID is easy. The first parameter is the timestamps. When it comes to long GCLIDs, everything becomes chaotic.

How to decode a GCLID

There are basically 3 parameters encoded inside it, one of which is a timestamp. The other 2 as yet aren’t known.

We have built a free tool that you can decode your own GCLID’s timestamps. It’s super easy to use. Just paste your Google Click ID and click on “Decode GCLID”. In the result, you’ll see Char length, timestamp, GMT date, and local date.

You can tell if someone clicked on your Google Ad or used a bookmark by checking the time they visited your website. If the time matches your ad click, they came from the ad. If not, they used a bookmark.

Additionally, if you wonder how to add GCLID to Google Analytics 4, check our article. It shows a step-by-step process.