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Evidence behind the claims

Milestone test results

The latest saved mobile optimization results, plus separate cache-reset and benchmark reports. Performance depends on the store’s content, apps, and testing conditions.

Recorded evidence, with an open accessibility target. The latest mobile sessions were captured after the October 25 evening optimizations. The earlier 18:11 PKT demo session is retained as history. Each method and tested revision is identified below; manual accessibility coverage remains incomplete, so WCAG 2.1 AA remains a target.

Records updated · October 26, 2026

Lighthouse results by test context

The latest controlled mobile series has five completed runs per page. The standard cache-reset product check and benchmark use their own samples and are shown separately. Tables show medians and ranges; every individual report is downloadable. Scores are out of 100.

Latest saved controlled mobile session ·

Purely mobile · after optimization

Five completed mobile runs per page after the localization, native account-widget, and gallery-loading optimizations. Captured October 25, 2026, 20:34–20:42 PKT.

Home mobile median
94 / 100
Collection mobile median
92 / 100
Product mobile median
90 / 100

Home and collection exceed 90 in all five controlled runs. Product has a median of 90 and a range of 89–91; 90+ on every product run is not established.

Tested store
purely-bmsyummi.myshopify.com
Tested theme
Milestone (tested as Manifest) · Shopify theme 131750854738
Tools
Lighthouse 13.5.0 · Chrome 151.0.0.0
Sample
15 completed mobile audits · five runs per page

Scroll the table to view all columns on smaller screens.

Purely mobile · after optimization median scores, October 25, 2026. See this session’s sample and method.
PageDeviceMedian performancePerformance rangeAutomated accessibility
Home Mobile 94 93–95 100
Collection Mobile 92 91–94 100
Product Mobile 90 89–91 100
All 15 individual runs and downloadable reports

Times shown in PKT (UTC+5). Every completed run is included.

All 15 Purely mobile · after optimization runs and reports
Tested pageRunPerformanceAutomated accessibilityReports
Home/ MobileRun 1 · 94 100
Home/ MobileRun 2 · 93 100
Home/ MobileRun 3 · 94 100
Home/ MobileRun 4 · 94 100
Home/ MobileRun 5 · 95 100
Collection/collections/all MobileRun 1 · 92 100
Collection/collections/all MobileRun 2 · 92 100
Collection/collections/all MobileRun 3 · 94 100
Collection/collections/all MobileRun 4 · 91 100
Collection/collections/all MobileRun 5 · 93 100
Product/products/interior-nad-precursor-complex MobileRun 1 · 89 100
Product/products/interior-nad-precursor-complex MobileRun 2 · 89 100
Product/products/interior-nad-precursor-complex MobileRun 3 · 91 100
Product/products/interior-nad-precursor-complex MobileRun 4 · 90 100
Product/products/interior-nad-precursor-complex MobileRun 5 · 91 100
Purely mobile · after optimization settings and provenance

Lighthouse 13.5.0 and Chrome for Testing 151, with standard mobile emulation and simulated throttling. Each run uses a fresh browser, HTTP cache disabled, and authenticated storefront storage retained (disableStorageReset: true). The recorded controlled runs have zero HTTP cache hits. No request blocking, motion changes, or skipped audits.

Deployed commit 902df512949b43b1cbc640f6f5c8ffd94c4941b1. The audit records a post-deployment check of 436 files with no code differences and no protected-file differences.

Mobile simulation
412 × 823 CSS px; 4× CPU; 150 ms RTT; 1638.4 Kbps throughput.

Mobile results use device emulation. Full reports include the exact URLs, timestamps, configuration, metrics, and findings.

Download Purely mobile · after optimization summary Download report SHA-256 checksums

Separate standard cache-reset check ·

Purely product · standard cache reset

A separate three-run product check captured October 25, 2026, 20:43–20:44 PKT. The completed performance scores are 88, 93, and 95.

Product mobile median
93 / 100

The median is 93, with a range of 88–95. This is a product-only check; it is not an average across home, product, and collection.

Tested store
purely-bmsyummi.myshopify.com
Tested theme
Milestone (tested as Manifest) · Shopify theme 131750854738
Tools
Lighthouse 13.5.0 · Chrome 151.0.0.0
Sample
Three product-page mobile audits · standard cache reset

Scroll the table to view all columns on smaller screens.

Purely product · standard cache reset median scores, October 25, 2026. See this session’s sample and method.
PageDeviceMedian performancePerformance rangeAutomated accessibility
Product Mobile 93 88–95 100
All 3 individual runs and downloadable reports

Times shown in PKT (UTC+5). Every completed run is included.

All 3 Purely product · standard cache reset runs and reports
Tested pageRunPerformanceAutomated accessibilityReports
Product/products/interior-nad-precursor-complex MobileRun 1 · 88 100
Product/products/interior-nad-precursor-complex MobileRun 2 · 93 100
Product/products/interior-nad-precursor-complex MobileRun 3 · 95 100
Purely product · standard cache reset settings and provenance

Same Lighthouse version, Chrome binary, emulated device, and simulated throttling as the controlled session, with disableStorageReset: false. These product-only results are kept separate from the five-run controlled series.

Same deployed commit 902df512949b43b1cbc640f6f5c8ffd94c4941b1 and browser/device configuration as the controlled mobile session.

Mobile simulation
412 × 823 CSS px; 4× CPU; 150 ms RTT; 1638.4 Kbps throughput.

Mobile results use device emulation. Full reports include the exact URLs, timestamps, configuration, metrics, and findings.

Download Purely product · standard cache reset summary Download report SHA-256 checksums

Latest saved benchmark session ·

Shopify benchmark

Separate development store with the official 2,000-product benchmark dataset and a copy of the Purely theme presentation. This is a benchmark configuration, not the Purely demo catalog.

Desktop performance average
92.3 / 100
Mobile performance average
93.7 / 100

Separate benchmark configuration; its averages do not combine with the Purely demo mobile sessions.

Tested store
manifest-benchmark.myshopify.com
Tested theme
Milestone (tested as Manifest) · Shopify theme 160219365531
Tools
Lighthouse 13.5.0 · Chrome 151.0.7922.34
Sample
18 valid runs · three pages × two devices × three runs

Scroll the table to view all columns on smaller screens.

Shopify benchmark median scores, October 24, 2026. See this session’s sample and method.
PageDeviceMedian performancePerformance rangeAutomated accessibility
Home Desktop 88 85–96 100
Product Desktop 100 98–100 100
Collection Desktop 89 84–96 100
Home Mobile 93 91–99 100
Product Mobile 93 84–93 100
Collection Mobile 95 95–95 100
All 18 individual runs and downloadable reports

Times shown in PKT (UTC+5). Every completed run is included.

All 18 Shopify benchmark runs and reports
Tested pageRunPerformanceAutomated accessibilityReports
Home/ DesktopRun 1 · 85 100
Home/ DesktopRun 2 · 88 100
Home/ DesktopRun 3 · 96 100
Product/products/amazing-ice-sunglasses-collection20 DesktopRun 1 · 100 100
Product/products/amazing-ice-sunglasses-collection20 DesktopRun 2 · 98 100
Product/products/amazing-ice-sunglasses-collection20 DesktopRun 3 · 100 100
Collection/collections/collection1 DesktopRun 1 · 84 100
Collection/collections/collection1 DesktopRun 2 · 96 100
Collection/collections/collection1 DesktopRun 3 · 89 100
Home/ MobileRun 1 · 93 100
Home/ MobileRun 2 · 91 100
Home/ MobileRun 3 · 99 100
Product/products/amazing-ice-sunglasses-collection20 MobileRun 1 · 84 100
Product/products/amazing-ice-sunglasses-collection20 MobileRun 2 · 93 100
Product/products/amazing-ice-sunglasses-collection20 MobileRun 3 · 93 100
Collection/collections/collection1 MobileRun 1 · 95 100
Collection/collections/collection1 MobileRun 2 · 95 100
Collection/collections/collection1 MobileRun 3 · 95 100
Shopify benchmark settings and provenance

The source snapshot was captured on October 24, 2026 at 18:45 PKT. The benchmark used cold network caches and three valid runs per page and device. Its Lighthouse configuration skipped modern-http-insight and bf-cache; see the full report configuration.

Exact tested theme files are identified by the downloadable SHA-256 manifest. A Git commit was not recorded for this snapshot.

Desktop simulation
1350 × 940 CSS px; 1× CPU; 40 ms RTT; 10240 Kbps throughput.
Mobile simulation
412 × 823 CSS px; 4× CPU; 150 ms RTT; 1638.4 Kbps throughput.

Mobile results use device emulation. Full reports include the exact URLs, timestamps, configuration, metrics, and findings.

Download Shopify benchmark summary Download report SHA-256 checksums Download tested-theme file hashes

A score of 100 is the automated accessibility result for that page and run. Lighthouse does not score the manual checks needed for a complete accessibility evaluation. These measurements do not establish WCAG conformance or guarantee another store’s results. See Google’s explanations of performance scoring and accessibility scoring.
Earlier retained demo records

The previous three-run Purely session completed at 18:11 PKT preceded the evening mobile stability work. Its 94 desktop / 63.3 mobile averages are historical results, not the latest optimized mobile measurements.

Download 18:11 PKT demo summary and report linksDownload 18:11 PKT report checksums

The still-earlier session captured at 17:18–17:21 PKT is also retained.

Download 17:18 PKT demo summary and report linksDownload 17:18 PKT report checksums

Recorded follow-up · October 25, 2026

Accessibility checks

WCAG 2.1 AA target. Manual verification is incomplete. This follow-up covers focused regressions and sampled keyboard, zoom, and reduced-motion behavior. Its scope and recorded revision are separate from the Lighthouse sessions above.

Follow-up demo revision: cb2c4646b595.

  • Passed

    Drawer and heading regression fixtures

    18 engine, viewport, and motion combinations.

  • Passed

    Variant focus regression fixtures

    54 cases covering focus during asynchronous variant updates.

  • Passed

    Cart reflow regression fixtures

    36 viewport combinations, with three focused controls checked in each.

  • Passed

    Filter focus regression fixtures

    18 engine, template, and viewport combinations.

  • Sampled

    Native Mac Chrome keyboard, zoom, and reduced-motion samples

    Keyboard flows sampled in Chrome 155.0.8059.86 on macOS 15.1; 26 page/zoom measurements at 200% and 400% were recorded.

Findings fixed and retested

  • Delayed variant responses stealing focus from the next task.
  • Cart actions becoming unreachable in short viewports and at high zoom.
  • Routine and password images missing alt attributes.
  • Filter Apply losing focus after the toolbar refresh.

Still awaiting verification

  • Spoken journeys with VoiceOver, TalkBack, and NVDA, including announcement retests.
  • Required native browser, physical phone, and in-app browser coverage.
  • Real-device virtual keyboard, text size, orientation, and touch checks.
  • Six valid Lighthouse reports pinned to the final theme revision after all fixes are complete.
  • The full content-extremes and optional-settings sweep on the final candidate.
Bundled Chromium, Firefox, and WebKit regression fixtures are not native-browser or physical-device certification. DOM and live-region assertions do not verify spoken screen-reader output. W3C’s evaluation guidance explains why human testing is required.

Download accessibility results and limitations

Local workspace check · October 26, 2026

Build checks

These checks describe the local theme workspace. They are separate from the archived demo measurements.

Merchant-addable sections
42
Page types
1322 template files including alternate layouts
Minified JavaScript file cap
16 KB16,384 bytes per authored file
JavaScript check
Passed90 files checked; largest 16,056 bytes (15.7 KB)

The JavaScript cap applies to each minified theme file, not the combined JavaScript downloaded by a page. The checked workspace includes uncommitted changes, so its results are a working snapshot, not a published-release certification.

Download build-check results

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