Keyword extraction using Natural Language Processing (NLP)

How to Get Keywords from a Website

If you want to find what keywords your site already targets, start by scanning your main pages—especially your homepage, blog, product pages, and service sections. Tools that use NLP can read your website content, analyze its structure, and pull out relevant keywords automatically.

Here’s what to look for:

• Page titles and headings (H1s, H2s)
• Meta descriptions and title tags
• Repeated phrases within body content
• Anchor text used in internal and external links

You can also run a full content audit with tools like our free SEO audit or review your site using a browser extension that highlights top keyword use.

How to Extract Keywords from Plain Text

If you have a blog post, email, or landing page draft, and you want to know which words stand out for search relevance, you can use NLP tools to process that content. These tools break down the text and highlight:

• Main topics and subtopics
• Keyword density
• Synonyms and related terms

Text-based keyword extractors are great for checking tone, improving clarity, and spotting missed opportunities. You can apply this before publishing content or when reviewing what competitors are doing.

What Is a Keyword Extractor?

A keyword extractor is a tool—often powered by NLP—that automatically pulls out important terms and phrases from a given block of text or page. These tools look for patterns in frequency, context, and grammar to decide which words matter most. Good keyword extractors also filter out common words and highlight action-driven search phrases.

There are many types of extractors, including browser-based apps, plugins, and AI tools. Some also support multiple languages and work across structured (HTML) and unstructured (plain text) content.

How You Can Use ChatGPT to Extract and Research Keywords

Using ChatGPT to Find Keywords from Text

One way to use ChatGPT is to paste in a block of your content and ask for the main keywords. For example, you could say:

“Here’s my blog intro. Can you list the top 10 keywords and explain which ones match search intent?”

ChatGPT will scan the text, understand its meaning, and give you keyword suggestions—plus an explanation of how they relate to user queries. This works well for early content drafts or competitive content analysis.

Extracting Keywords from a Website Using ChatGPT

You can ask ChatGPT to help analyze a specific web page or a group of URLs. While ChatGPT can’t browse the web directly unless connected to a plugin or browser tool, you can copy and paste HTML or page text and ask:

“Here’s the content from my homepage. What keywords are repeated or seem important based on structure and language?”

You’ll get a helpful list along with suggestions for improvements or gaps in keyword coverage.

Using ChatGPT to Group and Plan Keywords

Once you’ve gathered a list of keywords, ChatGPT can help you organize them by topic, intent, or funnel stage. This is useful for content planning, especially when building topic clusters. You could say:

“Group these keywords into blog topics and suggest a content structure for each.”

ChatGPT will respond with grouped themes, sample titles, and even outlines for each section—making your SEO strategy easier to manage.

Bringing It All Together

NLP-powered keyword extraction isn’t just for experts. You can use it with simple tools, browser extensions, or with help from ChatGPT. Whether you want to scan your whole website or just a paragraph of text, keyword extractors and AI assistants can help you spot patterns, plan better content, and match your audience’s intent more effectively.

If you want expert help, check out our full AI SEO keyword research service. We use NLP tools to find terms your audience is searching for—then help you use them to get found.