Mistakes Copywriters Keep Making Over and Over

The most common copywriting mistakes are empty slogans, keyword stuffing, the lack of a concrete answer to the reader's question, and content written "for the algorithm" instead of for a human being. In 2026 these slip-ups cost you twice over: Google rewards content that follows E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness), and AI search engines only cite texts that genuinely answer the question. Below we show what to avoid and how to write content that people actually read — and that algorithms choose.

The internet is full of texts on every topic imaginable. Only a fraction of them ever get read — the rest are skimmed and abandoned within seconds. A good article combines valuable content with a form that is easy on the eye. That rule applies equally to a long guide and a short product description.

In short

The most common copywriting mistakes are: a vague headline that does not match the content, writing "about yourself" instead of about benefits for the reader, a wall of text with no structure, a lack of specifics and proof, and no clear call to action. Good copy is scannable (headings, lists, short paragraphs), answers a real question your audience has and guides them towards one clear action. Write for the human, not for yourself.

A vague headline that does not match the content

A headline is a promise. It should announce exactly what the reader will find in the text. A headline that does not match the content irritates the visitor, who came to the page for a specific piece of information and got something else — and they bounce straight back to the search results.

When writing a headline, keep your target audience in mind. Copy aimed at young people on Instagram sounds different from a B2B offer addressed to decision-makers at a mid-sized company. Choosing the right language is not cosmetics — it is matching the text to whoever is actually reading it.

Empty, worn-out slogans

Company websites are riddled with phrases that practically everyone uses. They sound positive, they fill the space nicely — and they mean nothing. They are empty promises that will never set you apart from thousands of competitors:

• "We are a company with a long tradition."
• "We offer friendly and professional customer service."
• "Products perfectly tailored to your needs."
• "We guarantee the highest quality at the lowest prices!"

Instead of a cliché, give proof. Not "fast delivery", but "same-day dispatch for orders placed before 2 pm". Not "an experienced team", but "in business since 2013". Specifics build credibility — and credibility is one of the pillars of E-E-A-T, the criteria Google uses to assess content quality.

Keyword stuffing and unnatural language

A text in which the same phrase repeats every other sentence sounds artificial. It lacks flow and is hard to read. It is a classic symptom of writing "for the algorithm" — a relic of SEO from years past that today achieves the opposite of what was intended.

Modern search engines understand context and synonyms. You do not need to force the exact phrase in anywhere. Good copy reconciles the needs of SEO with the needs of the reader: it is natural, specific and topically complete. If you want to learn how to do this deliberately in an online store, see our post WooCommerce SEO — where to start.

No real answer to the reader's question

The most common sin: a shallow text that circles around the topic and never resolves any doubts. The reader came for an answer and got generalities.

Before you start writing, do your research and establish one thing: what question you are answering and who you are talking to. Use reliable sources and verify your information. Write simply, concretely and to the point. Today this also matters for visibility in AI Overviews and answers generated by language models — AI search engines cite content that answers a specific query clearly and credibly. The "question → short, factual answer" format works best.

Weak keywords — writing for the wrong phrases

Keywords are still a necessity, but what counts is their relevance, not their number. Write about what people are actually searching for, not about what seems important to you.

Google Keyword Planner (part of Google Ads) and tools that analyse search intent help with phrase selection. The key question is not "which phrase has a high search volume", but "what does the person typing it really want". Matching content to intent is the foundation we start every SEO audit with.

One solid wall of text

Internet users do not read — they scan. If the text is one dense block with no breaks, the reader gets tired, fails to spot what they were looking for and goes elsewhere. Good formatting is not decoration — it is the precondition for being read at all. Use:

• Short paragraphs — one idea per paragraph.
• Headings for every thread, making the text easy to scan.
• Lists and bullet points for data and steps.
• Bold for the most important fragments.
• Visual elements — graphics, tables, screenshots.

Remember too that form affects the technical side: heavy, poorly optimised images hurt Core Web Vitals (especially INP and load times), and a slow page loses readers regardless of how good the writing is.

Spelling and punctuation errors

Typos and punctuation mistakes can undermine all your work in an instant. Autocorrect will catch the worst offenders, but you have to deal with the rest yourself. Read the finished text several times, preferably out loud, and have someone else check it — a "fresh pair of eyes" spots slip-ups faster. Publishing a text full of errors shows a lack of respect for the reader and signals sloppiness, which weakens the credibility of your brand.

AI-generated content without human oversight

The new mistake of recent years: publishing AI-generated content without editing, fact-checking or any first-hand experience. Language models can produce grammatically correct text, but they just as easily make up numbers, sources and "facts". Google does not penalise the use of AI as such — it penalises worthless content, regardless of who wrote it.

How to use AI sensibly:

• Verify every number and every source — the model can be supremely confident and completely wrong.
• Add your own experience — that is the "E" (Experience) in E-E-A-T, which AI does not have.
• Do not mass-publish generic texts written "for a keyword" — today that is a straight road to losing visibility.

The best content in 2026 combines the efficiency of AI tools with the knowledge and experience of a real expert. The algorithm can tell the difference — and so can the reader.

Before you hand the text over for publication

Once the text is written and formatted, set it aside for a day. After intensive work you lose objectivity and stop seeing the small flaws. A fresh look helps you catch stylistic errors, and often lets you add a missing thread or a stronger closing line. A short break is the cheapest way to a better text.

Does AI-written content hurt SEO?

It is not the use of AI itself, but the quality. Google judges content by its value and its alignment with E-E-A-T, not by who wrote it. Generic, unverified AI text does harm — AI text edited by an expert, enriched with experience and verified facts, performs just as well as text written by hand.

What is E-E-A-T?

It stands for Experience, Expertise, Authoritativeness, Trustworthiness. Google uses these criteria to assess content quality. In practice it means: show real experience, give specifics instead of clichés, and take care of credibility (a named author, sources, no errors).

How many keywords should I put in a text?

There is no magic number and no "keyword density" you have to hit. Write naturally, cover the topic completely and use synonyms and related concepts. Modern search engines understand context — forcing the exact phrase in does more harm than good.

How do you write content that AI search engines cite?

Answer the specific question directly, ideally in the first paragraph of the section. Use the "question → factual answer" format, provide verified facts and keep a clear structure with headings. AI Overviews and language models cite content that is unambiguous, credible and well structured.

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Need content that actually sells?

At SEMTAK Marketing Agency we create content written for people and for search engines — no clichés, with specifics and solid technical execution:

• SEO audit — we will check what is blocking the visibility of your content and your site.
• Website SEO — more traffic from Google thanks to good content.
• Online store SEO — descriptions and categories that sell.
• Service packages — ongoing care for your content and visibility.

Running a WooCommerce store? Start with the post WooCommerce SEO — where to start, then dive into the complete WooCommerce store guide.