SEO Checker by Vedelklaas

Write or paste your article
Highlights:
  • Yellow = Hard to read (14–20 words)
  • Pink = Very hard to read (>20 words)
  • Green = Passive voice
Analysis Results
Readability (0–10)
—
—
Words
—
Ends with -ly: —
Very Hard To Read Sentences
0
Hard To Read Sentences
0
Passive Sentences
0
Title Length Check
—
Ideal length: 50–60 characters.
Meta Description Check
—
Ideal length: 120–160 characters.
Header Structure (H1–H3)
—
Use 1 H1 and multiple H2/H3s for structure.

SEO Article Checker by Vedelklaas: Free Readability & On-Page SEO Analysis Tool

Paste your article and get instant feedback on readability, sentence complexity, passive voice, title length, meta description, and header structure – all in one click.

In the fast-paced world of content creation, writing isn’t just about ideas – it’s about clarity, engagement, and search visibility. But how do you know if your article is easy to read? Are your sentences too long? Are you overusing passive voice? Is your title optimized for clicks? Most writers guess. Vedelklaas SEO Checker eliminates the guesswork.

How It Works (Simple 3-Step Process)

  1. Paste Your Content Copy and paste your blog post, landing page, or any text into the input box.
  2. Get Color-Coded Highlights
    • Yellow: Hard to read (14–20 words per sentence)
    • Pink: Very hard to read (>20 words)
    • Green: Passive voice detected
  3. View Detailed Analysis Instantly see:
    • Readability Score (0–10 scale)
    • Total word count
    • Number of “-ly” adverbs (often a sign of weak writing)
    • Count of hard, very hard, and passive sentences
    • Title length check (ideal: 50–60 characters)
    • Meta description check (ideal: 120–160 characters)
    • Header structure (H1, H2, H3 usage)

Why Readability Matters More Than You Think

Google doesn’t just rank content – it ranks user experience. Long, complex sentences frustrate readers. High bounce rates hurt rankings. Studies show:

  • 60% of users leave if content is hard to scan
  • Flesch Reading Ease correlates with dwell time
  • Clear writing = higher conversions

With Vedelklaas SEO Checker, you catch issues before publishing.



Perfect for Every Content Creator

Who Uses It?

Why They Love It

Bloggers

Write scannable, engaging posts that keep readers hooked

SEO Specialists

Optimize on-page elements without paid tools

Copywriters

Polish sales copy for clarity and persuasion

Students & Teachers

Improve academic writing and grade essays faster

Agencies

Scale content audits across client projects

 

100% Free. No Sign-Up. No Limits

Unlike bloated SEO suites, Vedelklaas SEO Checker is:

  • Lightning fast – results in <2 seconds
  • Privacy-first – your text never leaves your browser
  • Mobile-friendly – analyze on phone, tablet, or desktop
  • Ad-free – clean, focused experience

Pro Tips to Maximize Your Score

  1. Break up pink sentences – aim for <15 words average
  2. Replace passive voice with active (“The cat was chased” → “The dog chased the cat”)
  3. Use one H1, multiple H2/H3 for better structure and SEO
  4. End with strong CTAs – boost engagement and shares

Try It Now – Free

Head to vedelklaas.com/seo-checker and paste your next article. Watch your content transform from confusing to compelling in seconds.

Meta Description 

Vedelklaas SEO Checker: Paste your article for instant readability scores (0-10), color-coded highlights for hard sentences & passive voice, plus title/meta checks. Boost content clarity & SEO in seconds.