B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
87.7%
87.7% -- share of sites with gsc impressions drop for Google Search Console tracked websites (2025)
87.7% of analyzed web properties saw an impressions drop in Google Search Console following the removal of the &num=100 URL parameter.
- Based on a study of 319 web properties analyzed after Google removed support for the &num=100 parameter
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
87.7%
Unit
Percentage
Data Vintage
2025
Entity
Sample Size
319
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Locomotive Agency
Primary
Tier B
https://adaptingsocial.com/google-update-num-100/ ↗
Source Article
Your Impressions Just Plummeted: Why Google's Latest SEO Update is Actually Good News
Original Research
Locomotive Agency
· Original study ↗
Methodology
Analysis of 319 web properties following Google's removal of the &num=100 URL parameter
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Google Search Console tracked websites: 87.7% share of sites with gsc impressions drop. Source: Locomotive Agency (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/gsc-impressions-drop-after-num100-removal
HTML Embed
<blockquote cite="https://lighthousedata.io/data/gsc-impressions-drop-after-num100-removal" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>87.7%</strong> -- share of sites with gsc impressions drop for Google Search Console tracked websites<br><small>Source: Locomotive Agency (2025) · <a href="https://lighthousedata.io/data/gsc-impressions-drop-after-num100-removal" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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