Looking for a truly seamless WHMCS domain search + storefront integration into our main website

[Justin ROCKET LAUNCHER]

Hi everyone,

I am hoping to get some genuine advice from people who have actually achieved this properly.

We use WHMCS for domain and hosting services, but one of the biggest frustrations for our business is the customer journey between our front-facing website and the WHMCS portal.

At the moment, a user visits our main website, searches for a domain name, and is then pushed across to the portal page. The problem is that once they land there, the look, feel, navigation, and overall experience changes quite noticeably. It feels disconnected from the main website, looks clunky, and makes the journey harder for the customer. It also makes it harder for them to navigate back to the main site.

What I am trying to achieve is a much more seamless experience where:

• the domain search results can appear on the front-facing website
• the store experience remains on the main website as much as possible
• the WHMCS functionality still powers the backend
• the design and navigation feel consistent throughout
• the customer does not feel like they are being pushed into a separate portal environment

I have had multiple developers tell me they can achieve this, and I have engaged people on that basis, but I still feel like we have not ended up with the clean, seamless result we are aiming for.

This issue is becoming more important because we want to invest further into digital advertising and customer acquisition, but I do not feel confident driving paid traffic into a journey that still feels clunky and disconnected. If the flow is not smooth, it feels like we are making conversion harder than it needs to be.

What I would really like to understand is:

1. Has anyone here successfully integrated WHMCS into their main website in a way that feels genuinely seamless?
2. Are you using the WHMCS API to pull domain search and product data into a custom front end?
3. Did you build a custom storefront and then pass customers into WHMCS only at a later stage of checkout or account creation?
4. Are there best-practice approaches for keeping WHMCS in the background while preserving a polished front-end experience?
5. If you have done this successfully, are there examples you are willing to share?

I would especially appreciate hearing from businesses or developers who have actually done this in the real world, rather than just theoretical answers. Even a brief outline of your architecture or approach would be incredibly helpful.

At this point I am trying to work out:

• what is realistically possible
• what approach is considered best practice
• and how to avoid continuing to spend money on solutions that do not fully solve the problem

This is our domain page: https://rocketlauncherweb.com/domain/ - If you search for a domain we then land up here: https://portal.rocketlauncherweb.com/cart.php?a=add&domain=register 
The developers have finally made it look more like our website but it is still terrible and now you cannot get back to the main site. I really hate it. 

Any guidance, examples, lessons learned, or recommendations would be greatly appreciated.

Thanks in advance.

Justin