Purpose:

This section is to explain Subdomain setup for properties that already have an SSL server certificate file.

⏱ Estimated time: ~15mins

Depending on the DNS update frequency and TTL (priority) settings of the property’s DNS provider, it may take from the same day up to approximately 10 days for search results to be redirected to the subdomain.

For specific timelines, please contact the DNS provider in advance.

For more details about subdomains, please refer to Subdomain Setup for Booking Widget(BW).

1. Please obtain and upload the SSL Server Certificate file that matches the subdomain domain.
   

   Example	Acquired subdomain
   Official website domain (custom domain)	www.tripla-ryokan.com
   Acquired subdomain	booking.tripla-ryokan.com
   Domain of the SSL Server Certificate file to be obtained and uploaded	booking.tripla-ryokan.com

2. The "SSL Certificate Body", "SSL Certificate Private Key", and "SSL Certificate Chain (Intermediate Certificate)" must be uploaded in PEM format.
   
3. The SSL Server Certificate supports a maximum key length of 2048 bits.
   
4. Ensure that the SSL Server Certificate has sufficient validity remaining before uploading the certificate files and completing the subdomain setup in the tripla admin screen.
   If the SSL Server Certificate expires, the subdomain booking widget will not be accessible, and reservations from the official website will no longer be available.
5. When subdomain settings are configured using “I have a SSL Certificate,” the person managing the property’s official website is responsible for renewing the SSL Server Certificate. For automatic renewal methods, please contact the certificate issuer.
   
6. When renewing the SSL certificate, upload the new SSL certificate files again.
   *Reconfiguration of the CNAME record is not required.
7. The same URL cannot be used for both “Register Subdomain URL” and “First-Party Cookie URL Registration.”
   
8. When switching to the iframe subdomain version, it is recommended to configure First-Party Cookie settings first, and then proceed with Subdomain Settings. If Subdomain Settings are completed before First-Party Cookie settings, pop-up blocking may occur.

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1. Where to Set

1. Setting page: Brand Management Screen
   
2. Action: 'Admin Settings' → [Subdomain Settings]
   

1.1 Setup Flow

Step	Screen	Task Description
Step 1	Rental Server Admin Screen- Custom Domain	From the rental server admin screen for the official website’s custom domain, obtain and configure a subdomain for the booking widget.
Step 2	tripla Admin Screen- Subdomain Settings	・Enter the subdomain obtained in Step #1 into the [Register Subdomain URL] field. ・Select [I have a SSL Certificate], then click the [Save] button at the bottom of the screen. Upload the following three files in the displayed fields: - SSL Certificate Body - SSL Certificate Private Key - SSL Certificate Chain (Intermediate Certificate) ・Confirm that the [CNAME Record URL] is displayed in the tripla admin screen within 1 to 72 hours.
Step 3	Name Server Admin Screen-Custom Domain	From the DNS record settings screen, configure the CNAME record using the CNAME Record URL confirmed in Step #2.
Step 4	Booking Widget	The subdomain setup for the booking widget is now complete.

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2.  Step 1 - Register the Subdomain URL

Enter the acquired subdomain URL in the Subdomain URL field.

1. The subdomain cannot be used if a trailing “/” is added.
   
2. Entering values starting with “www.” or “https://” will also result in an error.

▼Examples
- Incorrect: booking.tripla-ryokan.com/
- Correct: booking.tripla-ryokan.com

*Please ensure that “tripla” is not included in the actual subdomain URL.

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3. Step 2 - SSL Certificate Settings

1. From the SSL server certificate dropdown, select [I have a SSL certificate].

1. Upload the following three files:
   
1. SSL certificate
   
2. SSL private key
3. SSL chain file (intermediate certificate)
   
2. After uploading the SSL certificate, select [Save].
   Within 1–72 hours, a CNAME Record URL will be issued and displayed in "Step 3 - Register CNAME Record".

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4. Step 3 - Register CNAME Record

4.1 DNS Record Settings – CNAME Record URL

Once the CNAME record is issued, enter the "CNAME record URL" in the DNS record settings screen of the contracted DNS provider for the target subdomain.

Step	DNS record settings
Step 1	・Name (Host Name) Enter the "subdomain URL" set in "Step 1 - Register the Subdomain URL". Example: booking.tripla-ryokan.com ・Type CNAME ・TTL (Priority) 60 ・Value Enter the CNAME record URL displayed in Step 3 of the tripla admin screen. *Depending on the server, a domain name (zone) may be added automatically. If so, add a . (dot) at the end of the CNAME record URL.
Step 2	Verification (DNS Lookup) Correct configuration of "Step 3 - Register CNAME Record" can be verified using a DNS Lookup site. Enter the subdomain URL from Step 1 into the DNS Lookup screen. Select [lookup DNS] to display the results. If the CNAME Canonical Name matches the CNAME record shown in Step 3 of the subdomain settings screen, configuration is correct.
Step 3	・Click [Save] to complete the subdomain setup.

1. Once DNS settings are completed, the tripla search box installed on the website will redirect users to the subdomain search results when the [Search] button is clicked.
2. Depending on the DNS update frequency and TTL (priority) settings of the property’s DNS provider, it may take from the same day up to approximately 10 days for redirection to the subdomain search results to take effect. For specific timelines, please contact the DNS provider in advance.

4.2 Reconfiguration

If reconfiguration is required because the setup could not be completed within 72 hours, select [Reset] at the bottom of the screen to clear the existing settings, then perform the setup again.

1. The variables {{facility_name}} and {{brand_name}} can be used in the title fields. These variables automatically display the facility name and brand name.
   

1. If necessary, page titles can also be set for languages other than Japanese.
   Since the booking widget language switches based on the user’s browser language, configuring multilingual page titles is recommended.

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6. Favicon

1. A favicon is an image file used as a website symbol (icon).
   
2. Once configured, it appears next to the website title in the browser tab.