Charts and SEO: how to make data visible and valuable

Core principle

Always summarize the key message of a chart in the body text.

The chart supports the text—not replaces it.

How to write chart summaries

Use this simple structure:

1. Introduce the topic

2. Highlight the key insight

3. Add one or two supporting data points

4. Explain what it means for the reader

Example (real estate context)

Chart topic: Property price development in Lisbon (2019–2024)

• Property prices in Lisbon have increased steadily over the past five years.

• Between 2019 and 2024, average prices rose by approximately 28%.

• The strongest growth occurred between 2021 and 2023.

• This trend reflects continued international demand and limited housing supply in central locations.

Where to place the summary

• Directly before or after the chart

• Within the main content flow (not only as a caption)

• In a section that includes relevant keywords

SEO best practices for charts

• Use descriptive headings (e.g. “Property price trends in Dubai 2020–2025”)

• Mention key figures in the text

• Use relevant keywords naturally (e.g. “real estate market trends”, “average property prices”)

• Ensure the content is understandable without seeing the chart

• Avoid vague references like “as shown above”

Using AI to support chart summaries

AI can help you turn chart data into clear, SEO-friendly text—if you provide the right input.

Practical tip

Use a structured prompt instead of a vague request:

• “Summarize the key insight from this property price chart in 3–4 sentences.”

• “Include percentage changes and explain what it means for buyers.”

What to provide

• For quick summaries: a screenshot of the chart

• For accurate, SEO-focused content: the dataset

• For best results: both screenshot and dataset

This ensures the output is both easy to read and factually precise.

Do’s and don’ts

Do’s

• Summarize the main insight in clear sentences

• Include specific data points

• Connect the data to real estate context

• Place the summary close to the chart

• Use AI with clear instructions and input

Don’ts

• Do not embed charts without explanation

• Do not rely only on visuals

• Do not list raw data without interpretation

• Do not use vague statements without figures

• Do not publish AI-generated text without checking accuracy

Quick checklist for editors

• Is the chart explained in the text?

• Are key figures written out?

• Is the insight clear without the chart?

• Are relevant keywords included?

If yes, your chart is both user-friendly and SEO-ready.