Online status means that your items for sale are now visible to buyers. Offline status hides all your selling items from the Market, keeping them in the sell list. As long as you are offline, no one can buy them. The faster you respond to new deals, the higher the rating. Go Online when you are actively selling and go Offline when you are away.
How I can change my status?
You can change the status in the side menu in Market mode by clicking on the Online/Offline switch.
This status has nothing to do with being online on the site. You can close the website tab and remain online. We can also change your status manually to keep the list of items updated on the site.
Why was I switched to Offline?
Your status is automatically changed to Offline if:
You did not managed to deliver an item to buyer in 12 hours;
Your account was limited on CS.MONEY;
Your account was blocked on Steam;
You have a private inventory in Steam, inactive Steam Guard or invalid trade link.
You have revoked an allowance to use your Steam API key and Session Cookies.
Why can't I change my status to Online?
To change to Online, you have to:
Make your profile and inventory public in Steam;
Set an up-to-date trade link;
Have an active Steam Guard mobile authenticator;
Allow the use of your Steam API key and Session Cookies.
If one of the conditions is not met, or the account is limited on CS.MONEY or in Steam, you will not be able to change the status.