B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
35%
35% -- percentage increase in average session duration for websites meeting all page experience signals (2025)
Websites meeting all page experience signals had a 35% longer average session duration according to SEMrush (2025).
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
35%
Unit
Percentage
Data Vintage
2025
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.
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Sources (4)
SEMrush
Primary
Tier B
https://www.semrush.com/ ↗
Source Article
Secure and Accessible Websites: HTTPS, Mobile Usability, and SEO in 2025
In the ever-evolving world of search engine optimisation (SEO), the fundamentals have shifted. While content quality and backlinks remain essential, Google has raised the stakes by making technical trust signals a priority. In 2025, two non-negotiable components of SEO success are a secure website (…
Also cited by
triplewhale.com
https://www.triplewhale.com/
2026-08-15
forbes.com
https://www.forbes.com/
2026-08-15
amraandelma.com
https://www.amraandelma.com/
2026-08-15
Original Research
SEMrush
· Original study ↗
Methodology
According to SEMrush (2025)
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
websites meeting all page experience signals: 35% percentage increase in average session duration. Source: SEMrush (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/page_experience_signal_impact_session_duration
HTML Embed
<blockquote cite="https://lighthousedata.io/data/page_experience_signal_impact_session_duration" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>35%</strong> -- percentage increase in average session duration for websites meeting all page experience signals<br><small>Source: SEMrush (2025) · <a href="https://lighthousedata.io/data/page_experience_signal_impact_session_duration" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.