Preview labRepository v4.13.9

Astra

A mature multipurpose theme with unusually broad integration and starter-site coverage. The theme can stay lean; imported stacks vary.

Bottom line

Best all-round option when speed matters but a large template and integration ecosystem saves more time than a minimal shell.

Astra official WordPress.org theme screenshot
Official repository screenshotOpen live preview ↗
91
Lighthouse performanceMedian mobile lab scoreOfficial preview · 3 runs · 16 Aug 2026
LCP
3.21slab loading
CLS
0.001lab stability
TBT
0msproxy, not INP
Transfer
148 KBpage total

This is the official WordPress.org preview under Lighthouse’s simulated mobile conditions. It is the fairest current cross-theme control we have—but it is not a realistic completed site.

Largest Contentful Paint
3.21 smedian of 3
First Contentful Paint
2.14 slab metric
TTFB
56 mspreview host response
Requests
17network records
DOM size
208elements
Transferred
148 KBcompressed total
Do not read this as “your site will load in this time.” The content, cache, host, plugins, builder, fonts and traffic conditions will differ. Use the result to understand a baseline and to spot unusually heavy default behaviour.

Theme choice sets a floor, not a ceiling. The meaningful unit for your project is the configured stack.

Measured hereAstratheme baseline
+
ChooseBlock editoreditor / builder
+
AddCommerce + pluginsproduction stack
Dependency warning

Do not treat an Astra blank preview as a proxy for a starter site. Builder, template and add-on choices can dominate the final result.

Strengths

  • Large install base
  • Strong starter-site ecosystem
  • Works across several editing stacks

Trade-offs

  • Many decisions happen outside the theme
  • Commercial tiers can be confusing
  • Starter sites can add dependencies

Best fit

Fast launches with a large template ecosystem

The first snapshot creates a baseline. Future runs will preserve the tested version rather than silently replacing old numbers.

Test dateVersionScoreLCPTransferScenario
16 Aug 20264.13.9913.21s148 KBOfficial preview