7 Mistakes That Ruin a New Website (and How to Avoid Them Before You Publish)

Publishing a website is the moment weeks of work is exposed to real customers. And almost always, what goes wrong isn’t a big technical failure: it’s details nobody checked. A form that doesn’t send, a title that says “Home”, a testing-phase setting that leaves the site invisible to Google.

These are seven mistakes that keep showing up in launches, each with a concrete way to avoid it. At the end there’s a checklist to run through before you publish.

In short: before launching, check that the website has a clear goal, that it looks and works on mobile, that it loads fast, that Google can find it, that the copy is real, that everything tappable works, and that the invisible things are handled: legal pages, backups, access and analytics.

Summary of the seven mistakes

#	Mistake	What it causes	How to avoid it
1	No clear goal or call to action	Visitors who don’t know what to do	One visible primary button on every page
2	Never testing it on mobile	Unreadable text, buttons that are hard to tap	Test on real phones and check contrast
3	Heavy images and a slow site	Abandonment before it loads	Compress and measure before publishing
4	Invisible to Google	Zero visits from search engines	Check for blocks and set up the basics
5	Placeholder or generic copy	Distrust and unqualified inquiries	Write for the customer’s real questions
6	Untested forms, links and buttons	Customers write and nobody gets the message	Test every contact point end to end
7	Forgetting what you can’t see	Legal problems, data or control loss	Sort out legal pages, backups, access and analytics

Mistake 1: no goal and no clear call to action

A website with no obvious next step forces the visitor to think, and most don’t: they leave. It’s common to find five buttons competing on the same screen, or a “Contact us” hidden in the footer.

How to avoid it:

Define one main goal (getting inquiries, bookings, sales) before designing. The article on what to prepare before hiring has a table to help you pick one.
Put one visible primary button at the top of every page, with concrete wording (“Get a quote”, “Book your appointment”), not generic (“Submit”).
Repeat that button at key points: after the services, after the testimonials and at the end of each page.

Mistake 2: not testing it on mobile

A large share of your visits will come from a phone, and a website designed only for a desktop screen usually fails there: tiny text, buttons crowded together, menus that won’t open, images that spill off the screen.

Readability and accessibility failures are also very common. The annual WebAIM Million analysis reviewed one million home pages in 2026 and found accessibility failures on 95.9% of them. The most common were low-contrast text (83.9%), images without alt text (53.1%) and form fields without labels (51%). These are problems that take little effort to fix if they’re caught in time.

How to avoid it:

Test the site on at least two real phones (a mid-range one if possible) and in two browsers.
Check that buttons can be tapped with a finger without hitting another one by mistake.
Use a comfortable text size for reading (as a reference, about 16 pixels for body copy) and colors with enough contrast between text and background.
Add alt text to images that carry information and label every form field.

Mistake 3: heavy images and a slow website

It’s the easiest mistake to make, because on your computer and on a good connection everything feels fast. Uncompressed photos, autoplay videos and unnecessary scripts are usually the cause.

How to avoid it:

Resize and compress images before uploading them, and use modern formats like WebP or AVIF when possible.
Run your site through PageSpeed Insights before publishing and check the mobile tab.
If the result isn’t good, the article on how many customers you lose with a slow website explains what to fix first.

Mistake 4: leaving the website invisible to Google

This is the quietest one. During development it’s common to ask search engines not to index the site, and sometimes that instruction stays on after launch. Months later, the owner wonders why there are no visits.

How to avoid it:

Check that the setting blocking search engines isn’t enabled (WordPress has a visibility setting for this) and confirm that the robots.txt file and the pages’ noindex tags aren’t blocking it.
Give each page its own title and description, written for people, and a single main heading (H1).
Create the sitemap and submit it to Google Search Console.
If you’re replacing an old website, redirect the old addresses to the new ones so you don’t lose visits or ranking.
If your business serves a local area, claim your Google profile. The local SEO for beginners article explains it step by step.

Mistake 5: placeholder, generic copy, or copy without the information customers want

“Welcome to our website, we are leaders in integral solutions” says nothing. Nor do the sample texts that come with templates, or stock photos anyone recognizes. What customers want to know is what you do, for whom, roughly what it costs, where you work and why they should trust you.

How to avoid it:

Write from the real questions your customers ask, not from scratch.
Include prices or ranges, service area, hours and your working process.
Use your own photos of your team, your products or your work.
Add trust signals: real reviews, cases, client logos (with permission) and visible contact details.
Search your own site for phrases like “lorem ipsum”, “sample text” or the template’s name, and remove whatever is left.

Mistake 6: untested forms, links and buttons

A form that doesn’t send, an email that lands in spam or a mistyped WhatsApp number can cost you customers without you knowing. It’s one of the most profitable checks you can do.

How to avoid it:

Send a test message from the form and verify that it reaches the right address, that it doesn’t go to spam and that the visitor sees a confirmation message.
Ask whoever sets up the email to enable SPF and DKIM on your domain. These settings help the emails your site sends avoid being marked as spam.
Tap your phone number from a mobile and check that it starts a call. Do the same with the WhatsApp link.
Click through every link in the menu, the footer and the buttons, and check that none leads to a page that doesn’t exist. Prepare a 404 error page with a link back to the home page.
If you sell online, make a complete test purchase using the payment gateway’s test mode, and one small real purchase before opening.

Mistake 7: forgetting what you can’t see

There are things visitors don’t notice but that matter a lot when something fails.

Legal pages. Privacy policy, terms and cookie policy, under the rules that apply to your audience. If you collect data through forms or analytics, they should be published and linked.
Secure connection. The site must load over HTTPS with a valid certificate, and addresses without the padlock should redirect to the secure version.
Backups. Ask who makes them, how often and how they’re restored.
Access and ownership. Domain, hosting and accounts should be in your name, and you should have the passwords. We covered this in the article on how much a website costs, along with the questions to ask whoever you hire.
Analytics. Install a measurement tool and check that it’s receiving data, or you won’t know where your visits come from.
Brand details. The browser tab icon (favicon) and the preview when the link is shared on social media and messaging apps.
Maintenance plan. Who will update the website and how often.

Checklist before publishing

Content

No sample text or placeholder images are left.
There are prices or ranges, service area, hours and contact details.
There are real reviews, cases or trust signals.
Every page has a clear action button.

Mobile and design

The site looks and works well on two real phones.
Buttons are easy to tap and text can be read without zooming.
There’s enough contrast between text and background.
Important images have alt text and form fields have labels.

Speed

Images are compressed.
PageSpeed Insights on mobile shows no serious problems.

Google

Search engines aren’t blocked.
Every page has its own title and description.
The sitemap is submitted to Search Console.
Redirects from the old website work.
The business’s Google profile is claimed and has the same details as the website.

Functionality

The form arrives, doesn’t land in spam and shows a confirmation.
The phone and WhatsApp links work from a mobile.
There are no broken links and a 404 error page exists.
If there’s a store, the full purchase process was tested.

Legal and technical

Privacy, terms and cookie pages are published.
The site loads over HTTPS.
Backups are scheduled.
Domain, hosting and accounts are in your name.
Analytics is receiving data.

After publishing: the first week

Publishing isn’t the end of the review.

The same day. Ask two or three people who haven’t seen the site to browse it and try to contact you. They usually find what you can no longer see.
First days. Repeat the form and speed tests with the site live.
First week. Check Search Console to confirm Google sees your pages, and analytics to see where visits come from and where they leave.
First month. Adjust copy and buttons based on what you see, and schedule regular reviews.

Frequently asked questions

Can I fix these mistakes after publishing?

Almost all of them, yes. But some cost time: if the site was blocked from search engines, it will take a while to show up, and a broken form may have cost you inquiries before you noticed. That’s why it’s worth reviewing them beforehand.

Who should do the final testing?

Ideally someone who wasn’t involved in the project, in addition to you. Whoever worked on the site already knows the path and won’t stumble where a new visitor will.

Is accessibility mandatory?

It depends on the country, the type of business and who you’re targeting. Some markets have legal obligations, especially for public bodies and certain sectors, and it’s worth checking. Regardless, improving contrast, alt text and labels helps all your visitors.

How long does this review take?

For a small website, a few hours to a couple of days if everything is ready. It will take longer if there’s an online store, multiple languages or integrations.

Wrapping up

A new website doesn’t have to be perfect on day one, but it does have to work, be findable and convey trust. Almost every mistake on this list is avoided with an organized review and the habit of testing the site the way a customer would.

This article closes the series. If you start from the beginning, the path is: how much a website costs, whether you need one when you have social media, what to prepare before hiring, how to keep it from being slow and how to show up in local searches.

Want me to review your website against this checklist before you publish? Write to me and we’ll do it together.

Accessibility data: WebAIM Million 2026, an analysis of one million home pages. The figures describe heavily visited sites and serve as a reference, not as a measurement of your website.