B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
5.8%
5.8% -- click through rate lift for meta description optimization (2026)
Improving meta descriptions increased click-through rate by up to 5.8% for informational queries.
- The source notes the CTR increase is "up to 5.8%"
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
5.8%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Portent
Primary
Tier C
https://keywordly.ai/blog/what-is-content-optimization ↗
Source Article
What is Content Optimization: A guide
Most content doesn’t fail because it’s poorly written — it fails because no one ever finds it. You can craft the most thorough, well-researched article in your niche and still watch it sit on page four of Google, collecting dust. That’s where content optimization comes in.
Content optimization is th…
Original Research
Portent
· Original study ↗
Methodology
Cites Portent's research; original study not linked
Methodology documented
Segmentation
Industrymarketing
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Plain Text
meta description optimization: 5.8% click through rate lift. Source: Portent (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/meta-description-ctr-lift-portent
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<blockquote cite="https://lighthousedata.io/data/meta-description-ctr-lift-portent" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>5.8%</strong> -- click through rate lift for meta description optimization<br><small>Source: Portent (2026) · <a href="https://lighthousedata.io/data/meta-description-ctr-lift-portent" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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