SirenMix — Secure storage, full-speed downloads, online playback, one-click sharing. Say goodbye to scattered files and throttled downloads. Sign up free for 5 GB.
Secure storage, full-speed downloads, online playback, one-click sharing. Say goodbye to scattered files and throttled downloads. Sign up free for 5 GB.
Who it is for
DJs preparing audio tracks.
The solution
From tempo and format to gain, key, and source quality, SirenMix keeps practical DJ preparation in one place.
What makes it unique
Processes audio files locally in the browser without uploading tracks.
In IndieTools' mobile lab test on July 5, 2026, the SirenMix website scored 96 out of 100 (good). Largest Contentful Paint took 2.25 s, rated good. It placed #11 overall in the finalized week 2026-W27.
Measured (UTC)
LCPLargest Contentful Paint
2.25 s
Good
TBTTotal Blocking Time
19 ms
Good
CLSCumulative Layout Shift
0.000
Good
FCPFirst Contentful Paint
1.80 s
Needs improvement
Ranked #11 overall in 2026-W27, best #1.
SirenMix lab metrics
Speed metrics for SirenMix, measured July 5, 2026
Metric
Result
Status
Trend
Mobile lab testMid-range phone on a throttled 4G connection, two runs averaged. Changes compare with the run on Jul 3.
Performance score
GoodDown 3 points
96 / 100
GoodDown 3 points
First Contentful PaintFCP
Needs improvement150 ms slower
1.80 s
Needs improvement150 ms slower
Largest Contentful PaintLCP
Good600 ms slower
2.25 s
Good600 ms slower
Speed IndexSI
Needs improvement1.57 s slower
3.78 s
Needs improvement1.57 s slower
Total Blocking TimeTBT
GoodAbout the same
19 ms
GoodAbout the same
Cumulative Layout ShiftCLS
GoodAbout the same
0.000
GoodAbout the same
Unthrottled observationsTimed on the test machine's own fast connection, so they read lower than the lab metrics above.
Page loadLoad
600 ms slower
2.25 s
600 ms slower
Server responseTTFB
No trend yet
Not recorded
No trend yet
SirenMix performance history
91 comparable mobile lab runs since March 7, 2026. Choose a metric and a range, then move along the line to read each run.
SirenMix Speed ranking
Weekly Speed standing for SirenMix
Weekly standingLatest finalized week 2026-W27. Bests cover the last 52 finalized weeks.
Stored lab observations from controlled test runs, not real-user Core Web Vitals or a guarantee of search rankings. Weekly standings remain attached to their finalized edition.Method legacy-unspecified, 1 samples per reading. Lab results can vary between runs.
Model difference−1. DR4 is 1 point lower than DR3.
Measured · sirenmix.com
What do DR4, DR3 and the model difference mean?
DR4:
Ahrefs' newer model. It gives more weight to links from sites with organic search traffic and rates a subdomain on its own links.
DR3:
The previous model, shown in the Ahrefs app until 1 December 2026.
Model difference:
DR4 minus DR3 for the same domain. The models calculate differently, so this is not growth or a drop; the “since” lines compare each model with itself.