the web performance conference2-3 November 2023, Amsterdam

Testimonials

Below, in random order, you'll find some of the feedback performance.now() received, via e-mail, blog posts, our (anonymous) post-conference surveys, and Twitter.

We understand of course speakers and sponsors might be biased, but please judge for yourself.

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“Impressive, educational first day at @perfnowconf! Thank you @Souders, Tim Kadlec, and team for hosting!”

Mario Ciabarra, 2018 sponsor

“Had to dash early, but very well done to all the @perfnowconf organisers! Thank you for a great event”

Andrius Aucinas

“On both days, the doors opened up an hour before the first talk and breakfast was served. Lunch and snacks during the coffee breaks was also served, so we were really taken good care of. Not to mention the free beer on the nights after the last talks…😅”

Stefan Ledin

“On my way home from a great @perfnowconf Thanks to all the speakers and people who organized it!”

Hilko Holweg

“One track with moderation was great!”

— Attendee feedback

“The best conference I've been at, closely tied with last year's event. The ideal mix of incredible speakers and amazing attendees.”

Yoav Weiss

“Expectations were high because of the stellar speaker list — and expectations were met. […] Single track works well — it’s pretty chill to not have to worry about talks that happen at the same time, or rushing from one area to another just to get in.”

Dario Gieselaar

“One of the most inspiring talks I’ve seen - incredible insights about finding performance optimization opportunities”

Patty Toland, 2018 sponsor

“The presentations were stellar, the attendees so interesting and engaged, and every aspect of the logistics exceptional. It was a pleasure and privilege to be a part of it.”

— A 2018 sponsor

“Oh yeah the conference was great too 😂.”

Ward Peeters

“Loved the case study talks because they gave very hands-on tips on dealing with performance issues”

— Attendee feedback

“Smashing booth was awesome! Got to talk to Vitaly and grab a couple of books!”

— Attendee feedback

“The "hallway track" is the real value for in-person conferences and @PerfNowConf does a lot of things that make it pretty epic.”

Patrick Meenan

“Back home after a fantastic @perfnowconf. It was a blast! One of the best conference I attended in the last 5 years. Looking forward to next year.”

Sven Wolfermann

“First of all, one of the best (if not THE best) conference I've attended so far. I loved the level and diversity of topics you brought to us. We came back home with lots of concrete action points to change in our projects. I hate when conferences are just a platform for sales pitches; I think you found a good balance there. Well done.”

— Attendee feedback

“Huge shoutout to the organization of #perfnow @PerfNowConf what an amazing event and such a wholesome community 🤩”

Rene Eichhorn

“Super glad I was able to make it to #perfnow this year! Great community with the most insightful and friendly people! Big up to all the organizers!”

Malek

“I've never been to a conference where meeting your fellow attendees was so easy and encouraged, where there were literally signs on every table with suggestions on how to welcome others into your conversation.”

Riccardo Margiotta

“This week I had the pleasure to attend the @PerfNowConf in Amsterdam.”

Joan León

“It's a tremendously welcoming conference, where meeting others is encouraged. Been a pleasure chatting with fellow #perfnow attendees today.”

Riccardo Margiotta

“For anyone looking for comments about the http://performance.now() conference for next year, i will say only this, is impossible to find a conference with better speakers, topics, organization or food in the entirely world!”

Dario Barrio

“Had a great time @perfnowconf seeing familiar faces, and making new friends. All the talks were fascinating and perfectly executed. Hands down one of the most well-organized confs I’ve been to.”

Alfredo Lopez

“I love the 3 hours at the end of each day. It is great to get in contact with the speakers and other attendees. In most other conferences I know there is only a party on the first day.”

— Attendee feedback

“It was a great and friendly atmosphere, nice talks and fantastic food (Especially the Smoothies :) )”

— Attendee feedback

“Such a nice atmosphere, great speakers, really good community feeling. I felt like you had done a great job making the event feel welcoming to me, a woman in tech. I really noticed the great mix in the lineup and appreciate your CoC and overall commitment to making it a good place for everyone. So massive thanks for that.”

— Attendee feedback

“Great conference, great last day exploring.”

Jonathan Edwards

“Great hallway track. Loved how friendly and open the attendees and organizers were.”

— Attendee feedback

“First day in the morning, on my way to the perfnow.nl conference. (15 mins with the ferry and 15 mins walk - such a great experience)”

Iulia Iacoban

“Awesome @perfnow conference. Great community, top speakers, well organized. 👏 It was nice to meet everyone. See you again next year. 👋”

Kevin Farrugia

“I found that going to a conference like this isn’t only about learning new things. It’s the experience as a whole! You’re getting inspired. You’re getting overwhelmed. You’re getting exposed to new situations. You’re getting forced to speak english for days! And you’re making new friends and contact with people that has the same interest as you, even though I didn’t meet a single one who works with exactly the same thing as me!”

Stefan Ledin

“I highly recommend the performance.now() conference, not just for those involved in web performance but anyone interested in web development in general and keen to advance their understanding of front-end web performance. It also helps that it is friendly, well organised, and Amsterdam is a great city to visit.”

Paul Whitehead

“I would like to thank the organisers, speakers and all attendees for these two unforgettable days!”

Stefan

“I think it was cool to be able to talk face to face with the sponsors! So much better to be able to ask them questions than to read marketing copy off their website.”

— Attendee feedback

“#perfnow was so much fun! So many great speakers and a friendly and super engaged audience. Looking forward to next year”

Tim Kadlec

“I love this about 2 day conferences.. On the morning of first day, you are sipping coffee in one corner of the hallway, by the end of second day, you feel like you are waving at everyone 👋🏻”

Priyanka Kore

“So many great ideas shared and sparked, so many amazing and friendly people, such flawless organization. Looking forward to next year!!”

Yoav Weiss

“I wish there were more [of these sponsor booths]. All the sponsors I talked to had useful, interesting things to talk about.”

— Attendee feedback

“I had extremely high expectations. It surpassed all of them. Amazing collection of speakers and attendees.”

Yoav Weiss

“These booths are a useful addition, we had some nice conversations with sponsors.”

— Attendee feedback

“@perfnowconf is hands down the best conference I’ve been to! Learnt loads and I’ve got many ideas of things to work on. I’ll def be back for next year!”

Jeffrey Knox

“On my way back from a fantastic @perfnowconf! I’ve visited several conferences before, but none of them had such a density of high quaility speakers and meaningful content. Thanks to the organizers and all the speakers. I highly recommend to visit #perfnow 2019!”

Dennis Westermann

“Thanks @perfnowconf organizers/sponsors for such a great conference! Lots of valuable insights. Great speakers and a welcoming atmosphere. Looking forward to repeat next year!”

Jorge Luis

“So today I heard and met IRL one of my heroes that inspired me to get into frontend development a couple of years ago. Although I couldn't speak with excitement, today was a good day.”

Luke Camilleri

“Had a fabulous time at @PerfNowConf. Have a head full of ideas, and a heart full of joy after seeing so many of my friends”

Andy Davies

“And that's the end of #perfnow 2019. Hands down the best conference I've been to, it was an honour to share from the stage and learn from industry experts.”

Simon Hearne

“So much to digest from @PerfNowConf but it's definitely been very fun and full two days!”

Jankat

“One of the best conferences I've ever been to, great content, great vibe.”

Stuart McMillan

“The talks were good and got into technical details, without being straight-up coding demos, which I appreciated.”

— Attendee feedback

“I had an amazing time in Amsterdam for #perfnow. Met the community, heard amazing talks”

Henri

“It was the most valuable performance event in my life. thank you GetResponse for the opportunity to be there. See you next year :)”

Igor Barkowski

“Really learned quite a few new things! Thanks for that.”

Andy Lemaire

“I got the opportunity to join the #perfnow conference at the very last minute. My badge was different: handwritten, no picture. However, I received it extremely fast. This is how different decisions can lead to improvements in performance. Many thanks to organisers @PerfNowConf.”

Patricija Cerkaite

“Day 2 was another amazing day 🤩”

Arex

“Safe to say then, I had a total blast. I met a whole bunch of fellow #webperf geeks and had lively conversations.”

Riccardo Margiotta

“I am personally amazed by all the talented folks that I had the opportunity to meet there. The #webperf community is friendly, inclusive, eye opening while continuously increasing their efforts to make the web a better place for everyone.”

Gilberto Cocchi

“Had an AMAZING time at @perfnowconf, thank you so much to @ppk @Souders @tkadlec for inviting me, organizing an amazing lineup, and taking great care of us in Amsterdam! If you missed out this year, start planning for Nov 2019 today, you won’t regret it!”

Katie Sylor-Miller

“Very good content on the whole. Took away load of great information and notes. Very friendly atmosphere and a super venue.”

— Attendee feedback

“perfnow é com certeza a melhor conferência que fui até agora. E foi só o primeiro dia. A maioria das confs que fui, as talks são bem rasas. perfnow tá sendo outro nível de profundidade.”

TK

“The first conference after years where I bought a ticket because of the content! 🥰🥰🥰”

Michael Hladky

“First day of @perfnowconf was amazing.”

Ivan Vanderbyl

“And very awesome to see + meet (large part of) the @Google team behind all the browser, API, CWV and docs work -improving #performance + #UX both directly & indirectly- in such an open setting @ @PerfNowConf 😀”

Erwin Hofman

“Heading home after an awesome first-ever #PerfNow conference. Thanks so much to @ppk for inviting me, @tkadlec and @Souders for being such great MCs, the @perfnowconf team for putting on such a seamless event, and of course all the fantastic attendees who made it all worthwhile!”

Tammy Everts

“Most important thing you should know about the @perfnowconf organisers is that they are very nice people and always do a great job 👏”

Rowdy Rabouw, possibly bribed

“I am really impressed with the #perfnow crowd. A lot of people are taking really extensive notes, it is SUPER silent during the talks and people are not leaving the talks at all. I have been to ~10 confs only this year and never saw anything like that. 👏”

Anna Migas

“The balance between different types of content was excellent.”

Hidde de Vries

“It's amazing to leave a conference with both the usual buzz of excitement, and also some actual practical takeaways, literal one-line changes I need to test that could make a big difference.”

Riccardo Margiotta

“My first Perf conf and I could not imagine a better start @perfnowconf 👏🏼👏🏼👏🏼 Loved the talks and specially the community I found very unique; super open and friendly. Can’t wait for the V2.0”

Zeshan Jaffari

“This detail from @perfnowconf is so important. Conference organizers, please provide such a space at your after parties as well!”

Peter Müller

“I really liked the opportunity to talk to the speakers on both evenings for 3 hours. This was awesome. I also liked that there was no loud background music.”

— Attendee feedback

“The organizers were lovely (they made a badge for my 3 y/o! ♥️), @tkadlec and @souders were delightful MCs, talks were super high quality, and most importantly the attendees were engaged!”

Zach Leatherman

“The hallway track was incredible.”

— Attendee feedback

“And that's a wrap, @PerfNowConf has been one of the best conferences I've ever attended to.”

Gabriel Longás

“For the past two years, the performance.now() conference has been the most valuable performance event I've attended.”

Tammy Everts

“Such a great conference and honored to have been a speaker. I had so much fun meeting everyone.”

Sia Karamalegos

“A fantastic conference with excellent talks & speakers. And incredible attendees too! It’s been amazing to meet so many #webperf folks these days.”

Estela Franco

“My first ever @PerfNowConf was a blast!! Thanks for the great talks and a beautiful venue”

Kyungeun Kim

“I had a wonderful time in Amsterdam at @perfnowconf. It was an excellent conference and Amsterdam, as always, amazing.”

Jason Grigsby

“Performance.Now() in Amsterdam was the best conference I have ever attended in my life. The caliber of speakers is unmatched. The content is inspiring and hugely informative. The organization of the conference was so smooth and timely! The pre-conference meetup was also amazing and organized so well!”

— Attendee feedback

“The quality of speakers was outstanding, the location was clean and the stuff was very nice. The food was delicious and the coffee from the barista very tasty! 🥰”

— Attendee feedback

“Looks more like a secret society meeting. Nice venue @PerfNowConf”

Mircea Piturca

“What a wonderful week of learning and sharing #webperf stories at @PerfNowConf in Amsterdam, thank you! Heading back rich with memories & friendships to last a lifetime!”

Jeena James

“Nice people, not too large, easy to get in touch with the top-class speakers”

— Attendee feedback

“Enjoyed the food, drinks and snacks @PerfNowConf”

Arex

“With a heavy heart (and a sore head) it’s time to say goodbye to the second @perfnowconf. What an incredible event, once again. I’m so grateful to have been a part of it.”

Harry Roberts

“It really has been a great conference, so many amazing speakers and attendees.”

Stuart McMillan

“Dreams do come true. I finally met with awesome @paul_irish”

Dilip Shukla

“Every speaker was excellent, and the level of expertise in the room was unreal. I got to talk 1-to-1 with folks who work on the browsers, dev tools, and performance tools I use every day, and ask their advice on my real world problems. What an incredible opportunity.”

Riccardo Margiotta

“It has been amazing indeed! Hard to find a more stacked lineup of speakers when it comes to web performance. 😄”

Gabriel Longás

“An important part of any conference, is the MC. […] The moderation was fun, motivating and kind!”

Michael Hladky

“I had a great time and learned a lot.”

Mathias Kahl

“Arrived at @perfnowconf with @KimHogeling. Venue Looks great and we Start the day with croissants ;) looking forward to two interessant days full of Talks and great speakers on this Single Track Conference.”

Sebastian Stach

“I was SO impressed for the last year conference, best conference ever!”

Dario Barrio

“Sponsor booths helped get another angle on how others measure performance.”

— Attendee feedback

“Imagine to meet all the people you learned the most from in the last years at one place, and they are happy to talk to you and answer all your questions. #perfnow makes this happen.”

Fabian Krumbholz

“Thank you @perfnowconf team, @Souders & @tkadlec for the best conference that I’ve ever attended.”

Gabriel Moncha

“Great speakers, very smooth seamless curating.”

— Attendee feedback

performance.now() conference 2022 has been undoubtedly one of the best conferences I have ever attended, it's very hard to find a more stacked lineup of speakers when it comes to web performance.”

Gabriel Longás Calvo

“Almost home from Amsterdam and feeling very thankful to have been involved in such a great show with the @perfnowconf team. Check out this show in 2019 - this year's was packed with great practical takeaways and a very welcoming crowd.”

Scott Jehl

“But the whole event turned out to be a blast.”

Erwin Hofman

“Thank you to the speakers and organisers of #perfnow. This has been the first conference I've ever attended and the experience was absolutely awesome!”

Jake Lane

“I don't think I've been more jealous of conference attendees than I am of people at #perfnow”

Adam Lynch

“Really nice talks! I don't know that I learned so many new things but was reminded of a lot. It was very motivational and welcoming as my first time at a performance focused conference.”

— Attendee feedback

“Since the sponsor booths were highly relevant to the conferences focus I found them good and had some enlightening conversations”

— Attendee feedback

“Thank you @PerfNowConf for a fantastic week.”

Scott Jehl

“Besides the great talks and amazing organization, I really liked that the conference was single track and had just enough people/content to stay involved in the content.”

— Attendee feedback

“Just wanted to thank you for letting us sponsor and hosting an incredible conference. Look forward to 2023”

— David Annez, 2022 sponsor

“At some stage in the conference i spoke to each sponsor, they were great, they were at the side & were optional.... it wasn't being stuff down our throats & there were no special 'talks' that were just covert sponsorship, which i really appreciated.”

— Attendee feedback

“Really loved #perfnow. Great talks and good conversations.”

Walter Ebert

“Wow @perfnowconf is packed! And great conversations before it even starts”

Andrius Aucinas

“Overall it was a greatly organised event and the catering was excellent. Great venue as well.”

— Attendee feedback

“For anyone who wasn‘t at the conference: checkout the recording of this great talk (and the others) once @PerfNowConf makes it available to get the answer😉 it will be well worth your time.”

Kristian Sköld

“One of the best things of @perfnowconf is how close we were to the speakers. And what a lineup it were. All really good at stage and off”

Vinicius Dallacqua

“Had such a great time meeting so many new people and seeing so many of you I hadn't seen since 2019. This community is amazing.”

Annie Sullivan

“I got the opportunity to join the #perfnow conference at the very last minute. My badge was different: handwritten, no picture. However, I received it extremely fast. This is how different decisions can lead to improvements in performance. Many thanks to organisers @PerfNowConf.”

Patricija Cerkaite

“Such a great conference. Big up to the organisers.”

Gabor Till

“Had an amazing time at @perfnowconf. Great talks, amazing conversations.”

Yousuf Shaikh

“There was a great atmosphere at the conference. People were very engaged.”

— Attendee feedback

“Great conference. Attendance, talks and networking: all stellar.”

Luca Passani

“The conference was amazing! One of the best technical conferences.”

— Attendee feedback

“It was a very well organized conference. The talks, The venue, the catering service, the sponsors - everything was great. Best conference I've attended so far :)”

— Attendee feedback

“Fantastic few days at Performance Now in Amsterdam”

Dermot Dooley

“Would love to thank the organisers for a warm welcome, and for being so accommodating to nursing mamas! ✌️💗”

Ursula

“The performance community seems like a great bunch of people and all were friendly and willing to chat. So many great talks with lots of take aways.”

— Attendee feedback

“One of the best conferences that I have attended so far.”

Iulia Iacoban

“First day of #perfnow was great, filled with insightful talks. The conference is running really smoothly, A+ for organization”

Tiago Nunes

“It was an overall great experience!”

— Attendee feedback

“@PerfNowConf took the reins as THE conference that you need to be at if you're working on web performance after velocity went away.”

Patrick Meenan

“#PerfNow was an absolute blast! Huge thanks to everyone who made me feel super welcome, especially @Souders, @tkadlec, @yoavweiss and @ppk. Who knew that the #webperf community was so full of such lovely people?! Definitely returning next year!”

Ryan Townsend

“This is shaping up to be pretty epic, and THE place where just about everyone working on web performance will be.”

Pat Meenan

“Lunch was delicious, thanks for the smoothies.”

Ivan Vanderbyl

“#perfnow was again very inspiring! So many great speakers and what a fantastic venue in Amsterdam!”

Jeroen

“Having a great time at @PerfNowConf, great talks and lineup, raising my interest in web performance.”

Shahzad Bhatti

“Everything was well arranged, the food was awesome and the little things like the deodorant at the toilets.”

— Attendee feedback

“#appdynamics was extremely proud to sponsor the inaugural #perfnow conference! A huge thanks to all the speakers, attendees, and organizers for making this such a great event!”

Kyle Tyacke, 2018 sponsor

“Really enjoyed @perfnowconf, caught up with loads of friends, met people I’ve admired and respected for a long time”

Andy Davies

“What a day! It is great to be back, everyone was in such a buoyant mood. It was a pleasure to chat to friends old and new. There are so many legends of the performance community here.”

Stuart McMillan

“So many great talks at the #perfnow conference. Thanks to all of the amazing speakers and organizers. It was awe-inspiring.”

Tim Tornau

“I'm unreasonably excited for @PerfNowConf”

Patrick Meenan

“If you're trying to justify the conference and travel, make sure to include the contacts and conversations as the main point with the talks as a side bonus. These are the kind of conversations where the future of the web are usually started.”

Patrick Meenan

“The 1st day of @perfnowconf is now over. Each talk was badass–can't wait for tomorrow ✊”

Anna Safronova

“Excellent couple of days at @perfnowconf in Amsterdam. A beautifully curated conference with a perfect format.”

Andrew Betts

“Thanks to @ppk, his team and @Souders for realizing there's a need for #perfnow conference. The overall organization was perfect, really loved the short, but information packed speaker QA.”

Matija Grcic

“Instructive and fun 2 days in Amsterdam”

Michal Zalecki

“I enjoyed chatting with all the booths and getting to know their product and what they would bring to our business”

— Attendee feedback

“The general level of storytelling, aural and visual presentation was so high that they are all pretty much up there. The QA method is great and ensures relevant questions in a conversational form. The MC's were really good at keeping a flow on stage and did amazing introductions :)”

— Attendee feedback

“My first #PerfNowConf and won't be my last. I fell in love with the community. I feel I gathered an arsenal of knowledge, with which I can tackle my challenges at work. See you next year #Amsterdam.”

Sebastian Attard

“Even doing demo’s during conference sessions @perfnowconf, great audience!”

Peter van Gils, 2018 sponsor

“A fantastic inaugural @perfnowconf! Thank you to all the speakers, sponsors and attendees for making it such a successful event.”

Steve Souders

“The event itself was great and there was some amazing, actionable content that I can take away and implement at work.”

— Attendee feedback

“What a great day at #perfnow, all the speakers were simply amazing, I love each second of it, you are really inspiring and I will definitely apply a lot of the concepts. Thank you all!”

Alexandra Vargas

“The conference was unbelievably well done, and to meet so many new and also people you've previously only known from Twitter was so nice.”

Jacob Groß

“I’ve spoken at close to 100 public events, and @perfnowconf was genuinely the best of all of them in terms of sheer consistency, focus, and quality of content. Unmissable.”

Harry Roberts

“What an amazing @PerfNowConf conference. Incredibly high quality talks and we were super proud to be sponsoring it and giving back to a badass #performance community. See you in 2023...”

Loveholidays Tech

“I'm relatively new to this space, but I had attended 3 years ago when I was at a bit of a crossroads in my career. Met a bunch of awesome people who gave me the inspiration I needed. Since then, I sold my business and focused on webperf. Super happy! TLDR; you should go! :D”

Kevin Farrugia

“The conference is amazing and full of great content so make sure to come next year 🦄”

Anna Migas

“@PerfNowConf is a great conference to meet the Web Performance community ☺️”

Joan León

“Registration was quick and near effortless. Schedule for talks was upheld quite well, always great! Lovely to get a Chocolonely before the last cluster of talks!”

— Attendee feedback

“Wanted to give a shout out to @Souders, @tkadlec and #team for organising and hosting such an amazing conference last week in #Amsterdam! I am still digesting all the wisdom that was spread in these 2 days. We will definitely come back to @perfnowconf next year again 🙌 #perfnow”

Christian Bromann

“I had an amazing time, loved speaking with every single one of you, speakers and attendees. So many takeaways and good memories! Thanks to all of the organisers. 🙏🏼”

Andrea Verlicchi

“@PerfNowConf reminded me about how much I love conferences. It was entertaining and educational and packed with old and new friends.”

Jeff Lembeck

“The speakers with real world problem and solutions were a great way of benchmarking personal problems in company setup with real world problems that other people/teams are facing (& solved)”

— Attendee feedback

“Organization was really good. Conference was simple and the focus was on the content and the speakers, without any unnecessary bloat”

— Attendee feedback

“Let me say that I really enjoyed @perfnowconf! Great speakers, very interesting topics and awesome organization. I can definitely recommend attending next year!”

Ron Derksen

“Many thanks for #perfnow, speakers were really inspiring and it was greatly organized.”

Benoît Emile

“2 days full of awesome presentations and talks about performance. It was a pleasure!”

Philipp

“One of the best conferences I've ever experienced so far. […] See you next year Amsterdam!”

Kris Klepers

“Just leaving Amsterdam where I “got high on information” @PerfNowConf #PerfNowConf and met the most amazing people who care about making the Web faster and made new friends. My mind’s buzzing with new ideas, things I need to research and learn.”

Brian Louis Ramirez

The venue

Zuiderkerk
Zuiderkerkhof 72
1011 WB Amsterdam
Google Maps

The venue is wheelchair-accessible