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Max Rozen

@rozenmd.com

1.2K followers 170 following 410 posts

Building Workers & D1 at Cloudflare. Aussie in France. Building https://OnlineOrNot.com, a self-funded, sustainable company. He/Him.

OnlineOrNot.com,

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Max Rozen @rozenmd.com · Apr 24

Built a quick uptime checker with Next.js, and Node on AWS Lambda back in February 2021.

These days it provides uptime monitoring, API correctness and heartbeat checks, and hosts a status page for you and your team: https://onlineornot.com

OnlineOrNot - Free Status Pages and Uptime Monitoring

OnlineOrNot monitors your websites and APIs, letting you know instantly if anything goes wrong.

onlineornot.com

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Reposted by Max Rozen

Kenton Varda @kentonvarda.com · 5d

Those benchmarks from @t3.gg revealed some interesting issues in Workers. Happy to say it's all fixed now, save for some lingering next.js-specific stuff we're continuing to work on. Thanks for the reproducible test cases, @t3.gg.

Excessive details in blog post: blog.cloudflare.com/unpacking-cl...

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Max Rozen @rozenmd.com · 5d

as a bigCorp engineer I love k8s, but we have a dedicated team running it

for my solo efforts I prefer giving a dockerfile to a platform like render or heroku and letting them deal with config

Max Rozen @rozenmd.com · 5d

i just asked claude to build an equalizer in c++ for my Tangara and it two shot it

(hit a bootloop that took some debugging)

my queer ipod now has MEGABASS 😌

Reposted by Max Rozen

Jason Lengstorf @jason.energy · Jun 27

3. your career is a pie-eating contest where the prize for winning is more pie

the things people see you do are the things they'll ask you to do. if you want to get asked to do certain types of work, make sure people see you doing that type of work

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Max Rozen @rozenmd.com · Jun 25

that's insane

Max Rozen @rozenmd.com · Jun 19

that's the same setup I ended up with hah

Max Rozen @rozenmd.com · Jun 12

oh it's client side rendered, the timings above are just for loading graphql data

Max Rozen @rozenmd.com · Jun 11

they're both in us-east-1, should be 20ish ms at most

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Max Rozen @rozenmd.com · Jun 11

Next step: move the dashboard over to the existing public REST API.

Historically it's been hard to dogfood the public REST API since the whole dash uses GraphQL, so looking forward to that changing.

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Max Rozen @rozenmd.com · Jun 11

I've managed to speed it up by ~80% with one simple trick: stop relying on GraphQL.

Instead of fetching data resolver-by-resolver, now I fetch all of the data in one chonker of an SQL query.

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Max Rozen @rozenmd.com · Jun 11

So this screen in @onlineornot.com has always been slower than I wanted - around 2.3s(!) to load 10 rows of data from the GraphQL endpoint.

It was the first screen I ever built (4+ yrs ago), and I leaned heavily into GraphQL resolvers because I assumed it'd be fast.

onlineornot's dashboard showing uptime checks

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Max Rozen @rozenmd.com · Jun 4

realised i was missing a pretty important empty state in @onlineornot.com today: when you search for something and there are no results

Reposted by Max Rozen

Michele Hansen @mjwhansen.com · May 22

fyi founder friends — new scam to watch out for

Dave Ceddia @daveceddia.com · May 21

A sneaky scam I've seen a few times now:

Someone writes into support to demand a refund for a duplicate charge.

"oh crap!"

But their email is nowhere in my system, nor is their name...

Initial scam email saying "I noticed I was charged double for my latest transaction on your platform ... Please investigate this and resolve the error ASAP"

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Max Rozen @rozenmd.com · May 14

Goodbye TopBarNav, hello SidebarNav

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Max Rozen @rozenmd.com · May 12

I just use Trello and the check list feature

Max Rozen @rozenmd.com · May 11

yep - own hardware, own time, own IP

Max Rozen @rozenmd.com · May 11

#1*

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Max Rozen @rozenmd.com · May 11

well shit

#2 for maxrozen.com/on-four-year...

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Reposted by Max Rozen

Rand Fishkin @randfish.bsky.social · May 6

"Bragging about your business using AI is like bragging about using spellcheck."

- @amandanat.bsky.social

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Reposted by Max Rozen

Marques Brownlee @mkbhd.com · May 5

Probably my favorite YouTube video of all time. 90 seconds of inspiration to last a lifetime youtu.be/E1oZhEIrer4?...

Nobody Tells This To Beginners

YouTube video by Saar

youtu.be

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Max Rozen @rozenmd.com · May 5

every week when you've convinced yourself you just need to build one more feature and it'll fix the plateau just one more feature bro it'll be so good bro

Max Rozen @rozenmd.com · May 2

this happens literally every time for me, the worst

Max Rozen @rozenmd.com · May 1

TIL there are SaaS vendors that raise their prices automatically year over year for existing customers

surely that increases churn?!

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Max Rozen @rozenmd.com · Apr 28

when i can't breathe while sitting en terrasse with my pinte de bière

a man in a suit and sweater stands in front of a sign that says ' the '

ALT: a man in a suit and sweater stands in front of a sign that says ' the '

media.tenor.com

Reposted by Max Rozen

Rand Fishkin @randfish.bsky.social · Apr 19

Quite an excellent piece. Max and I don't agree on everything (some of our lessons learned contradict each other), but I love having my thinking challenged, and I'm probably wrong on some of these!

Max Rozen @rozenmd.com · Apr 4

I wrote an article about the lessons learned from running OnlineOrNot for the past four years:

maxrozen.com/on-four-year...

Four years of running a SaaS in a competitive market - Max Rozen

Looking back on the last four years, what worked, what didn't.

maxrozen.com

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