B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
14
14 -- html error commonality rank for Empty heading tag error among HTML problems found on Tranco top 5,000 websites (2026-08)
Empty heading tags rank as the 14th most common HTML problem found across home pages of the Tranco top 5,000 websites.
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
14
Unit
Rank
Data Vintage
2026-08
Entity
Sample Size
2,656
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
ValidateHTML
Primary
Tier A
https://validatehtml.com/html-errors/empty-heading ↗
Source Article
Fix Empty Heading Tags in HTML | ValidateHTML
Empty Heading Tags
Heading elements (<h1> through <h6>) define the document outline. An empty heading creates a gap in the page structure, confuses screen readers (which announce it as a heading with no content), and wastes SEO potential.
How common is this error?
We ran this validator over the home…
Original Research
ValidateHTML
· Original study ↗
Methodology
Ranked by frequency among all HTML errors detected in the August 2026 validation crawl of Tranco top 5,000 home pages
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Empty heading tag error among HTML problems found on Tranco top 5,000 websites: 14 html error commonality rank. Source: ValidateHTML (2026-08). Via Lighthouse Intelligence -- https://lighthousedata.io/data/empty-heading-error-commonality-rank
HTML Embed
<blockquote cite="https://lighthousedata.io/data/empty-heading-error-commonality-rank" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>14</strong> -- html error commonality rank for Empty heading tag error among HTML problems found on Tranco top 5,000 websites<br><small>Source: ValidateHTML (2026-08) · <a href="https://lighthousedata.io/data/empty-heading-error-commonality-rank" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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