You can build websites with Commet which will have our URL containing .sintra.site.com in the domain; however, you can now customise it to have your custom domain! If you do not see this capability, wait a few hours and refresh the app.
In order to have a custom domain on your Commet's website, you need to:
Purchase a domain from a domain provider (we do not offer this capability).
Enter the website domain into the domain setup widget.
Link the purchased domain address to our generated website with DNS.
Wait until the linking process is complete.
What is a domain?
Domain is a unique, human-friendly name that identifies a website, such as google.com. In more technical terms, domain is translated by the Domain Name System (DNS) into a numerical IP address, allowing your web browser to connect to the correct server, a.k.a. - your website.
How does the domain work?
Think of the domain as a name for a street, where the street would be your website.
Until this name is given to a street, it's just a name that exists but doesn't lead to an actual street. This means that, until you assign a domain to your website - no one can actually reach the website with your custom URL.
In order to be able assign this name (domain) - the website must already exist. You create websites with website builders like Commet's website builder that crafts websites in seconds.
Once you have both a domain and a website - you need to link it together. The linking happens with the help of a DNS! After the website you have and the domain is linked together - anyone can easily access the website through the custom URL you've set up!
Getting a domain
To set up a custom URL for Commet's generated website - you first need to purchase a domain from a domain provider.
Purchasing a domain
To purchase a domain, you need to:
Head to a domain provider like GoDaddy, Cloudflare or NameCheap;
Purchase a custom domain.
Each provider has their own plans and it's quite straight to the point: you set your custom name, pay for it, and can then connect it to a website.
Finding the domain name
To set up the custom domain, you will need to know the domain name. It will usually be available right after logging in to the domain provider. It's best to read documentations of the domain provider to find information on how to exactly locate the domain.
Managing domain name DNS
You can manage the DNS in the domain provider you purchased the domain from or a different one, if that's more comfortable for you. DNS will allow linking the domain to the actual website.
Finding DNS settings
To link the custom domain to a website, you need to find the DNS records. It's best to read the documentation of the system you choose to manage DNS records with to find it.
Connecting a custom domain
After creating or editing the website, you can see a button "Connect Domain". When you click it - a domain connection widget will open, in it:
Enter the domain name in the full URL format: www.domain.com and click "Continue"
Note: It's important to:not add any slash in the end of the URL
include sub-domain like
www.or, if you customised it, alternative one in the beginning
You will then see 2 records you must add to your domain provider (or DNS management system if you chose to use a different one) for the domain to be linked to this website. Find DNS records section there and add the following info:
1st record information:
Type:CNAME
Host name:www.or whatever you've entered before your domain
Value/target:custom-sites.sintra.ai
Once this is saved, add another record.
Click "Connect" and wait up to 24 hours for the custom domain to be associated with Commet's website.
Custom domain notes and limitations
You must add "www." in front of your domain in the in-app domain widget in order for the domain to be registered. We're planning to adjust this in the future.
If you wish to change the domain -> the DNS records will also change and will have to be re-configured.
When registering a record, make sure to enter the information displayed in app per each record type. You need to have 2 new records: one record is CNAME and another is TXT; both of them have their own distinct values that should be entered in the DNS record.
Make sure to save the DNS records in the DNS management environment.
If you have the ability to adjust the TTL (total time to live) - make the value closest to 5 minutes for optimised website performance. This value determines how long the website is cached in visitors browser's memory.
Make sure to have proxy setting off for Cloudflare. Other domain providers shouldn't have this setting.
Custom domain can start working anytime within 24 hours after connection, meaning it could go live instantly or anytime later. We cannot speed this process up as it directly depends on the internet's speed and domain provider. We do not send reminders yet; however, we're planning to release this functionality in the future.
ID given next to the TXT value is a website's security certificate, ensuring that the website we've built is secure.
You cannot host a custom domain in Sintra, you must but it form a domain provider this functionality is planned for December, 2025.
Domain providers allow having some insight on the website's reach, Sintra does not support any website analytics yet.
Troubleshooting custom domain
Page stating "this site cant be reached" with an error that contains words "DNS_"
This means that the DNS were set up wrong - doublecheck if you have set up the correct values that were given in the Sintra's domain widget and that no duplicate records exist that would contain matching values.
"error 1014 cnsame cross-user banned"
The site will not start working due to wrongly set up DNS records. Check if there aren't multiple records containing "custom-sites.sintra.ai"
Closed the domain widget and can't find it
If you need to see the domain record again, you can access it by either:
going to the chat you used to set up the domain and clicking "Connect Domain"
editing the website and clicking "Connect Domain"