How to add Subscribe botton on Website

 find your YouTube user or Channel ID

Each YouTube channel has a unique user ID and channel ID, these IDs are used to refer to the channel in certain apps and services. Let's find out channels user ID or Channel ID.

sign in to your YouTube account and go to YouTube Studio in the top right click your profile picture

select YouTube Studio in the left menu click on settings from the left menu select Channel, then select advanced settings on top tabs scroll down select manage YouTube account in other settings

then select advanced settings from the left menu you'll see your Channel's user ID and channel ID copy your channel ID 

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and pastet the subscribr button code here subscribe button embed in website  you can customize your subscribe button take a look you will see the preview of your subscribe button

copy the code and paste it in your website or app

click on the Block insert icon and type HTML and select custom HTML and paste

the copied code here and here is the result you can see let's check it look at here your subscribe button is

ready. how to put the code in Blogger page

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here we'll add the Subscribe button lick here select HTML View press Ctrl F Type the word and point theCrosser then paste the code save it let's check it here you go another way to put follow the process