Default Tamer — Set Default Tamer as your default browser once. Links from Slack open in Chrome, work URLs in Firefox, personal links in Safari — automatically. Free, open source, zero data collection.
Set Default Tamer as your default browser once. Links from Slack open in Chrome, work URLs in Firefox, personal links in Safari — automatically. Free, open source, zero data collection.
Problem it solves
Routes links to different browsers by originating app or domain, avoiding repeated manual copying between browsers.
The solution
Never switch browsers manually again. Default Tamer routes links where they belong based on the app or domain — automatically.
In IndieTools' mobile lab test on July 5, 2026, the Default Tamer website scored 90 out of 100 (good). Largest Contentful Paint took 3.19 s, rated needs improvement. It placed #26 overall in the finalized week 2026-W27.
Measured (UTC)
LCPLargest Contentful Paint
3.19 s
Needs improvement
TBTTotal Blocking Time
0 ms
Good
CLSCumulative Layout Shift
0.000
Good
FCPFirst Contentful Paint
1.69 s
Good
Ranked #26 overall in 2026-W27, best #3.
Default Tamer lab metrics
Speed metrics for Default Tamer, 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 2 points
90 / 100
GoodDown 2 points
First Contentful PaintFCP
GoodAbout the same
1.69 s
GoodAbout the same
Largest Contentful PaintLCP
Needs improvementAbout the same
3.19 s
Needs improvementAbout the same
Speed IndexSI
Needs improvement1.46 s slower
4.12 s
Needs improvement1.46 s slower
Total Blocking TimeTBT
GoodAbout the same
0 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
About the same
3.19 s
About the same
Server responseTTFB
No trend yet
Not recorded
No trend yet
Default Tamer performance history
95 comparable mobile lab runs since March 1, 2026. Choose a metric and a range, then move along the line to read each run.
Default Tamer Speed ranking
Weekly Speed standing for Default Tamer
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−2. DR4 is 2 points lower than DR3.
Measured · defaulttamer.app
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.