Jakob's Law: Why Your Users Want Your Site to Feel Familiar (And How to Break the Rules Without Breaking Trust)

Imagine you land on a new website. You look for the menu. It's not in the top right. You look for the search bar. It's somewhere unexpected. You try to add something to a cart, but the button says "Acquire" instead of "Add to cart." You pause. You have to think. And thinking is the first step toward leaving.

That moment is Jakob's Law in action.

What Jakob's Law actually is

Jakob Nielsen, a user advocate and principal at the Nielsen Norman Group, coined the observation that has come to be called Jakob's Law. His research showed that users spend 95 to 99 percent of their time on sites other than yours. That means they arrive at your site carrying expectations built from Amazon, Google, Facebook, and whatever else they visited last.

The practical rule is simple: users prefer your site to work the same way as all the other sites they already know.

That doesn't mean every site should look identical. It means certain patterns exist for a reason. People expect the main navigation near the top. They expect a search icon to look like a magnifying glass. They expect a checkout flow to feel like a checkout flow. When you honor those expectations, users don't have to learn your site. They already know how to use it.

Laws of UX, the public design reference, summarizes it this way: users transfer expectations they have built around one familiar product to another that appears similar. By leveraging existing mental models, designers can create superior experiences where users focus on their tasks instead of learning a new system.

The mistake most people make with this law

The mistake is thinking familiarity means sameness. It doesn't.

Familiarity applies to function, not personality. A user's mental model tells them where the menu should be, how a form should submit, what a shopping cart icon means. Those are functional expectations. If you move them or rename them without a very good reason, you create friction. Friction is where people leave.

But the space between those functional expectations is where your brand gets to breathe.

Think about it this way. A restaurant still needs a front door, tables, chairs, a menu, and a checkout counter. Those are functional expectations. But the way the room feels, the lighting, the menu design, the way the server talks to you, that's where personality lives. A restaurant that puts the door in the ceiling violates function. A restaurant that plays jazz instead of pop music, or uses paper napkins instead of cloth, that's expression within the expected frame.

Websites work the same way.

Real-world examples

YouTube's 2017 redesign

When YouTube moved to Material Design in 2017, they didn't force it on everyone overnight. Desktop users could preview the new layout, submit feedback, and even revert to the old version if they preferred. The core functionality stayed familiar: play button, comments, sidebar navigation. The refresh happened on top of that foundation, not in place of it.

Amazon's checkout

Amazon's one-click purchase is famous partly because it feels inevitable. It respects the familiar path: review, confirm, done. They innovate in speed and personalization, not in reinventing what a checkout is. The result is a flow that feels like every other checkout you've ever used, but faster. That's the sweet spot.

Google Search

Google's homepage is almost legendarily minimal. But that minimalism is itself a familiar pattern. A single search field, a logo, maybe a button. You land there a thousand times and you never have to think. Google experiments with doodles, dark mode, and AI overviews, but the core interaction is unchanged because the core expectation is unchanged.

The tension: standards versus expression

There's a way to think about this that fits the work I do, and it isn't technical.

God gives us standards because he knows how we're wired. The principles in those standards exist to keep us safe, productive, and in relationship with each other. When we follow them, things tend to go well. But those same standards don't dictate what your house looks like, what music you listen to, or how you greet a neighbor.

The underlying system is the same. The expression is yours.

Web design has a version of this. Jakob's Law is the standard. It acknowledges that users have been trained by every other site they visit, and that training is valuable. Respecting it means you don't waste their time relearning basic interactions. But within that baseline, there's enormous room for a site to feel like you.

Typography choices, color, motion, the way copy sounds, the structure of a page that's still readable but arranged in a way no template would suggest. Those are the details that make a site yours. They don't have to break Jakob's Law to do it. In fact, they work best when they don't.

How to map user expectations before you break them

If you want to build something that feels both familiar and unique, start with a map of what users already expect. Ask:

• Where do people look first? Studies show the top left and the center of the page draw the most attention.
• What words do they expect? Search instead of find. Cart instead of basket. Submit instead of send.
• What order do they assume? Name before email before password. Photo before description before price.
• What icons mean what? A magnifying glass means search. A shopping cart means checkout. A hamburger menu means navigation.

Once you know those defaults, you have two options. Follow them, which is almost always the right call for primary tasks. Or deliberately replace them, but only when you have a strong reason and you replace them with something just as clear.

Novelty for its own sake is a vanity metric. It impresses other designers. It confuses visitors.

Where to spend your uniqueness budget

If you free yourself from reinventing navigation, forms, and checkout, you redirect that energy toward the parts of a site that actually benefit from being distinctive.

• The story. Your about page, your process, your why. These are the places a visitor wants to hear your voice. Use it.
• The craft details. Spacing rhythm, type scale, motion timing. These send quiet signals about quality.
• The structure of value. How you explain services, how you show proof, how you make an offer. A template does this generically. You can do it specifically.

This is where brand positioning matters most. Your brand isn't a logo. It's the sum of decisions that make this site feel like it came from the same place you did.

It's also where modern web design becomes more than decoration. When you combine a familiar interaction layer with a bespoke content layer, you get the best of both worlds: low friction for the user, high signal for the story. That's exactly the balance I write about in modern web design in the AI era.

And when that structure is semantic, fast, and clean, search engines and AI assistants can read it just as easily as a person can. That's how good design translates into SEO.

The honest tension

There's a spiritual angle here that matters to me.

I believe God gives us standards because he knows the systems that govern how we function. When we work with those systems instead of against them, things tend to work better. That doesn't mean every outcome looks the same. It means the foundation is shared, and the expression is personal.

Think about a custom client portal. The underlying expectation is a login, a dashboard, files, messages, updates. Those are standard because they work. But how it feels, the language it uses, the way progress shows up, that can be yours. That's the part that builds trust.

The same is true for every website. The standards aren't the limit. They're the floor. From there, you build something that tells the truth about who you are.

The bottom line

Jakob's Law is not a call to copy. It's a call to respect. Respect the user's time, their experience, and the mental models they've spent years building. Honor the functional patterns they already know.

Then spend your creative energy on the parts of the site that only you can write, only you can design, only you can build. That's where trust lives. That's where conversion happens. And that's the part no template can give you.

If you want a site that respects what users already know, while still sounding and feeling like you, let's talk about what that looks like.