State of BigCommerce theme SEO — September 2026
As of 2026-09-31, 232 BigCommerce themes have Google Lighthouse SEO scores on Themestested, measured on their own demo stores. The median mobile SEO score is 85 (desktop 85); 55 themes (24%) score 90 or better on mobile. The highest is Spark Automotive by Halothemes at 97, then Nimo Decor at 97 and Tribes Automotive at 97. Among the themes first tested in September 2026, the best for mobile SEO is Spark Automotive at 97. The biggest improvement is Kansha Pets, up 12 points to 89 since 2026-09-19.
Top BigCommerce themes for SEO
Highest mobile SEO score as of 2026-09-31; the desktop score beside it. A theme's score is the median of its tested presets.
| Theme | Mobile | Desktop | Price | |
|---|---|---|---|---|
| 1 | Spark Automotive · Halothemes | 97 | 97 | $350 |
| 2 | Nimo Decor · Halothemes | 97 | 97 | $250 |
| 3 | Tribes Automotive · Halothemes | 97 | 97 | $300 |
| 4 | Hera Bright · Halothemes | 95 | 95 | $300 |
| 5 | Tribes Jewelry · Halothemes | 95 | 95 | $300 |
| 6 | Spark Tools · Halothemes | 95 | 95 | $350 |
| 7 | Nimo Jewelry · Halothemes | 95 | 95 | $250 |
| 8 | Annie's Garden Tech · Halothemes | 95 | 95 | $245 |
| 9 | Hera Light · Halothemes | 95 | 95 | $300 |
| 10 | Covent Garden Contemporary · Flair Consultancy | 92 | 92 | $235 |
New this month
Themes first tested in September 2026, best first.
| Theme | Mobile | Desktop | Price | |
|---|---|---|---|---|
| 1 | Spark Automotive · Halothemes | 97 | 97 | $350 |
| 2 | Nimo Decor · Halothemes | 97 | 97 | $250 |
| 3 | Tribes Automotive · Halothemes | 97 | 97 | $300 |
| 4 | Hera Bright · Halothemes | 95 | 95 | $300 |
| 5 | Tribes Jewelry · Halothemes | 95 | 95 | $300 |
| 6 | Spark Tools · Halothemes | 95 | 95 | $350 |
| 7 | Nimo Jewelry · Halothemes | 95 | 95 | $250 |
| 8 | Annie's Garden Tech · Halothemes | 95 | 95 | $245 |
| 9 | Hera Light · Halothemes | 95 | 95 | $300 |
| 10 | Covent Garden Contemporary · Flair Consultancy | 92 | 92 | $235 |
Trending
The biggest changes in mobile SEO between a theme's latest test and its last test at least a week earlier. A move of 3 points or more counts; Lighthouse varies by a point or two between runs.
| Theme | Mobile | Desktop | Price | Change | From → to | |
|---|---|---|---|---|---|---|
| 1 | Kansha Pets · Papathemes | 85 | 85 | $245 | +12 | 77 → 89 since 2026-09-19 |
| 2 | Solar Hemp · epicShops | 82 | 82 | $100 | +8 | 77 → 85 since 2026-09-20 |
| 3 | Vibrante Electronics · DIT Interactive | 90 | 90 | $195 | +8 | 77 → 85 since 2026-09-15 |
| 4 | Hera Bold · Halothemes | 87 | 87 | $300 | +7 | 85 → 92 since 2026-09-20 |
| 5 | Solar Beauty · epicShops | 80 | 80 | $100 | +5 | 80 → 85 since 2026-09-12 |
| 6 | Tribes Jewelry · Halothemes | 95 | 95 | $300 | +5 | 95 → 100 since 2026-09-12 |
| 7 | Polaris Hemp · epicShops | 80 | 80 | $300 | +5 | 80 → 85 since 2026-09-12 |
| 8 | Brick Lane Taste · Flair Consultancy | 87 | 90 | $295 | +4 | 85 → 89 since 2026-09-15 |
| 9 | Brick Lane Condo · Flair Consultancy | 90 | 90 | $295 | +4 | 85 → 89 since 2026-09-15 |
| 10 | Eyeva Glasses · Papathemes | 82 | 81 | $295 | +4 | 85 → 89 since 2026-09-15 |
Falling
| Theme | Mobile | Desktop | Price | Change | From → to | |
|---|---|---|---|---|---|---|
| 1 | Clariss Home · Gordonbyte | 87 | 87 | $99 | -7 | 92 → 85 since 2026-09-19 |
| 2 | Portobello Crest · Flair Consultancy | 87 | 90 | $235 | -7 | 92 → 85 since 2026-09-15 |
| 3 | Orbit Light · epicShops | 82 | 82 | $100 | -5 | 85 → 80 since 2026-09-15 |
| 4 | 22 Savile Row Classic · Flair Consultancy | 59 | 51 | $195 | -5 | 59 → 54 since 2026-09-12 |
| 5 | Eyeva Sofas · Papathemes | 85 | 85 | $295 | -4 | 89 → 85 since 2026-09-12 |
Distribution
How all 232 tested BigCommerce themes fall across Google's bands.
About this report
Scores are Google Lighthouse SEO scores from the PageSpeed Insights API, run against each theme's own demo store — the home page and, on store platforms, a collection and a product page — on a simulated mid-range phone and on desktop. A theme's score is the median of its presets; a preset's is the mean of its pages. Every run is kept, and a theme's page shows its history. This month is closed; its numbers no longer change. Read the full methodology, or see the live BigCommerce SEO ranking.
Other months: October 2026November 2026
Other reports for September 2026: speedaccessibility