sourcetarget.email
Ranks Overall #1,048 Built Awesome #808
Data from Sep 6, 2026, 1:57 PM UTC old Measured once a week · 3 runs since Aug 21, 2026
Elsewhere:
PageSpeed Insights ·
Calibre ·
Treo ·
CrUX Vis ·
Wayback Machine
Stack
Lighthouse Scores
Metrics Lighthouse, mobile
No field data: the Chrome UX Report is not being collected for this project, so every figure below is from the Lighthouse run.
| Metric | Lab Lighthouse | ||
|---|---|---|---|
| Value | Change / range | Trend | |
| LCP CWV (estimate) Largest Contentful Paint | 2.04 s good | ↓ -319 ms (-13.5%) 2.04 s – 2.36 s | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | |
| CLS CWV (estimate) Cumulative Layout Shift | 0.011 good | → no change 0.011 – 0.011 | |
| TBT Total Blocking Time | 0 ms good | → no change 0 ms – 0 ms | |
| FCP First Contentful Paint | 816 ms good | ↓ -63 ms (-7.2%) 816 ms – 1.21 s | |
| Speed Index | 816 ms good | ↓ -63 ms (-7.2%) 816 ms – 1.21 s | |
| TTFB Time to First Byte | 611 ms good | ↓ -72 ms (-10.5%) 611 ms – 683 ms | |
LCP Subparts lab observed, unthrottled
The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is throttled.
Page weight
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Page Weight | 1.24 MB | ↓ -407 B 1.24 MB – 1.24 MB | |
| Requests | 31 | → no change 31 – 31 | |
| Third-party Weight | 1.14 MB | ↓ -462 B 1.14 MB – 1.14 MB | |
| Third-party CPU | 0 ms | → no change 0 ms – 0 ms | |
| Unused JS | 0 B | → no change 0 B – 0 B | |
| Unused CSS | 0 B | → no change 0 B – 0 B |
By resource type
- image 92.5% 1.14 MB · 12 req
- font 6% 74.0 kB · 3 req
- document 0.9% 10.6 kB · 1 req
- other 0.6% 7.7 kB · 13 req
Third parties 1 entities
1.14 MB transferred, 0 ms on the main thread.
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 340 ms | ↑ +70 ms (+26%) 270 ms – 359 ms | |
| Long Tasks | 0 | → no change 0 – 0 | |
| DOM Elements | 113 | → no change 113 – 113 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 9 | → no change 9 – 9 | |
| A11y Failures | 1 | → no change 1 – 1 | |
| A11y Failing Nodes | 1 | → no change 1 – 1 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
9 violating nodes across 3 rules, 266 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
-
minor
image-redundant-alt— Alternative text of images should not be repeated as text 7 nodes -
serious
link-name— Links must have discernible text 1 node -
serious
scrollable-region-focusable— Scrollable region must have keyboard access 1 node
Accessibility failures 1 of 27 audits
-
link-name— Links do not have a discernible name 1 node
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 6, 2026, 1:57 PM UTC | 99 | 2.04 s | 0.011 | 0 ms | 1.24 MB | 3/3 | ±2 | 2,470 0% | 21.6s |
|
|
| Aug 30, 2026, 8:05 AM UTC | 98 | 2.36 s | 0.011 | 0 ms | 1.24 MB | 3/3 | ±0 | 3,589 +45% | 22.5s |
|
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| Aug 21, 2026, 6:52 AM UTC | 99 | 2.20 s | 0.011 | 0 ms | 1.24 MB | 3/3 | ±1 | 2,471 0% | 21.2s |
|
Embed this score
Use this web component to show sourcetarget.email's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site!
<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://sourcetarget.email/"></speedlify2-score>