B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
66
66 -- median lighthouse performance score for HVAC service firm homepages (Mobile & Baldwin County, AL) (2026)
The median Lighthouse mobile performance score for HVAC service firm homepages in Mobile and Baldwin County, AL was 66.
- Single-run Lighthouse scores show test-retest instability
- Median shifted slightly to 65 upon re-measurement
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
66
Unit
Score
Data Vintage
2026
Entity
Sample Size
82
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
Campbell Digital Studio
Primary
Tier A
https://www.campbelldigitalstudio.com/research/measuring-small-business-web-presence ↗
Source Article
Measuring small-business web presence without Google Places
Measuring small-business web presence without Google Places.
I measured the web presence of every HVAC service firm in Mobile and Baldwin County, Alabama, without touching Google Places. The frame came from Overture Maps; the counties came from a spatial join against Census boundaries. Then I broke …
Original Research
Campbell Digital Studio
· Original study ↗
Methodology
PageSpeed Insights API, mobile strategy, Lighthouse 13.4.1, one run per origin; author notes single-run scores are noisy (median moved 66→65 on re-run of 73 sites)
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
HVAC service firm homepages (Mobile & Baldwin County, AL): 66 median lighthouse performance score. Source: Campbell Digital Studio (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/hvac-median-lighthouse-mobile-score-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/hvac-median-lighthouse-mobile-score-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>66</strong> -- median lighthouse performance score for HVAC service firm homepages (Mobile & Baldwin County, AL)<br><small>Source: Campbell Digital Studio (2026) · <a href="https://lighthousedata.io/data/hvac-median-lighthouse-mobile-score-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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