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performance.now() conference

@perfnow.nl

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A single track conference with fourteen world-class sessions covering today’s most important web performance insights. #perfnow

https://perfnow.nl
19th and 20th of November, Amsterdam

Curated by Tim Kadlec, Tammy Everts, Harry Roberts, and PPK

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@perfnow.nlOct 12, 2026, 12:58 PM

If we look at a few decades of web performance, what technologies and techniques worked, what didn’t, what made the most difference, what has stood the test of time? Making a fast website is challenging enough; keeping a website fast is harder!

@adactio.com at perfnow.nl

Long-term performance
by Jeremy Keith, adactio.com

at performance.now(), 19-20 November in Amsterdam
@perfnow.nlSep 29, 2026, 1:26 PM

Reminder: tickets get more expensive onThursday. There are only nine tickets in the middle bracket left.

perfnow.nl/tickets.html

Screenshot of performance.now() ticket shop, with only  nine mid-tier tickets left (highlighted).
@perfnow.nlSep 22, 2026, 10:19 AM

We also add

Max Inden about quic HTTP/3
bsky.app/profile/scot... about the path to standards
bsky.app/profile/timv... with a case study

Come join them at perfnow.nl

@perfnow.nlSep 22, 2026, 10:19 AM

Oh dear, speakers are being announced in carload lots! Today we add

bsky.app/profile/clif... about Core Mobile Vitals
bsky.app/profile/jpam... as our second MC
bsky.app/profile/mach... about selling web performance

Come join them at perfnow.nl

@perfnow.nlSep 1, 2026, 9:27 AM

Three new speakers were announced for perfnow.nl !

Aleth Gueguen about native web and PWAs.
@adactio.com about long-term performance: not milliseconds but decades
Risko Ruus about regression testing and other QA

Tickets: perfnow.nl/tickets.html

See you in November in Amsterdam!

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