Tilda, WordPress, or React+FastAPI: Where Your Website's Security Actually Lives

Why Website Security Is Not About Choosing a CMS

If you're searching for a website development price and only seeing studio rate cards — this article is for you. Everyone wants a "turnkey website" fast and cheap. Tilda and WordPress promise exactly that. But once a website starts taking payments, storing customer data, or integrating with a CRM, "fast and cheap" turns into hidden risks.

The key thesis is simple: security is not a plugin you bought. It's architecture. And here the choice is between "renting" (Tilda), "a constructor with open windows" (WordPress), "the illusion of a vibe coder," and "your own house" (React+FastAPI).

Tilda: Speed vs. Control

Tilda is a SaaS. You rent space on someone else's server. For a landing page or a business card site, it's a great choice: fast, convenient, no infrastructure to worry about. But building a website on Tilda hits a ceiling as soon as the business needs custom integrations.

Here's what matters:

• API limitations. Tilda lets you export finished pages, but there are no methods for creating and editing pages from code. If you need your own FastAPI backend, you'll have to make compromises.
• Platform lock-in. On lower-tier plans, you can't take the code and leave. The site is tied to Tilda.
• Security on Tilda's side. That's a plus — less headache. But a minus in that you don't control how data is processed on someone else's server.

Takeaway: if your website is a business card, ordering a website on Tilda is reasonable. If it's a business tool with integrations, you'll hit the ceiling.

WordPress: Flexibility That Requires Guarding

Building a website on WordPress is like a Lego constructor with open source code. Flexible, but every plugin is a potential hole. Here are the numbers worth knowing before choosing a turnkey WordPress site:

• 91% of new vulnerabilities in 2025 were found not in the WordPress core, but in plugins.
• The median time between vulnerability disclosure and the first attack is about 5 hours. 70% of vulnerabilities are exploited within a week.
• 59% of plugins in the official directory haven't been updated in two years or more.

WordPress can be secure. But it requires constant attention, an audit budget, and a technical specialist. It's not "set it and forget it." WordPress website development is not about installing a theme — it's about maintaining infrastructure.

React + FastAPI: What You Get and What You Pay For

Building a website on React is not "expensive and complicated." It's "expensive because you own it." Here's what you get with custom website development:

• Control over the attack surface. No third-party plugins with unknown code. Security depends on your team and your code.
• Performance as part of security. A fast website is less vulnerable to certain attacks and ranks better.
• Honesty about risks. Custom code is never "invulnerable." If there's a hole in the code, it will be found. But you'll be the one fixing it, not waiting for a patch from the author of an abandoned plugin.
• Unlimited integrations. FastAPI is built for APIs. You can connect any CRM, any service, any logic, without wondering "is there a plugin for that?"

React JS website development means the code belongs to you. You don't depend on a pricing plan, platform whims, or an abandoned plugin.

Vibe Coders: The Illusion of Quality

It's now popular to create a website with a neural network in an evening. It looks beautiful. But a beautiful website is not a product. It's a risk.

Here are the facts worth knowing before trusting artificial intelligence to create websites:

• 45% of AI-generated code fails basic security tests (Veracode data).
• AI is especially bad at authentication, authorization, cryptography, and input validation — exactly the things that concern data security.
• "Dependency hallucinations": AI may suggest installing a library that doesn't exist. Attackers create a package with that name and wait for the vibe coder to install it.
• A vibe coder doesn't understand why the code works. When something breaks, they ask the neural network to "fix it." The network generates a new piece that may break something else. It's a cycle where no one understands the system as a whole.

Everyone uses neural networks. We do too. But there's a difference between "asking AI to write a piece of code" and "building an architecture where AI code is verified, isolated, and integrated into a working system." The first is speed. The second is a product.

Comparison Table

Criterion	Tilda	WordPress	Vibe Coder	React + FastAPI
Code ownership	No (rental)	Yes (but with plugin baggage)	Formally yes, effectively no	Full
Security	On Tilda's side	Your responsibility (plugins)	Unpredictable	Your responsibility (code)
Integrations	Limited by API	Via plugins	"However it turns out"	Any
Speed / performance	Average	Depends on plugins	Can be high, but unstable	High
Hidden costs	Subscription	Plugins, support, audit	Rework after breakage	Development and support
Who's responsible for a bug	Tilda	You + plugin author	No one	You (but you understand the code)

How Much Does a Website Cost and What Do You Get

Turnkey website development is always a balance between speed, price, and risks. Website development of any complexity on a custom stack costs more upfront. But how much does it cost to create a website that goes down, loses customer data, or gets hacked? The answer to that question is usually more expensive than the development itself.

Sales-driven website development is not about design. It's about security, integrations, and control over the code. If you need a landing page for the weekend — go with Tilda. If you have a blog with ads — maybe WordPress. If you need "a website in an evening to look nice" — you already know how that ends.

But if your website is a sales tool with integrations and customer data, saving on custom development turns into risks that cost more than the development itself.

What to Do Next

We build websites on React and FastAPI. Not because it's trendy, but because we're responsible for the security and integrations you order. We use neural networks as a tool, but every line that goes into production is the responsibility of a human who understands what it does and what risks it creates.

If you're looking for website development services where security is architecture, not a plugin — request a consultation. We'll review your task, show you how it works in practice, and propose a solution for your budget. No obligations and no "website in an evening."