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🧵 Two of my most- and first-used checks when doing a performance audit are surprisingly old school: 1) Validate HTML 2) Disable JS.

Validate HTML? Yep. We haven’t really cared about ‘valid HTML’ for valid HTML’s sake for about a decade, but certain errors can actually be pretty significant. What’s wrong with this picture?


It’s this lil’ fella right here. isn’t allowed in the , so when the browser encounters the , it assumes the should have been closed already.


This is a feature. This is what allows us to omit certain closing tags like

, , , and—you guessed it!—. The appearance of certain opening tags implies the closing of certain preceding ones.

The practical upshot of which is that non- elements early-terminate the tags, pushing all of your important resources into the . Oops!
Feels like a good time to share my path from random person on the internet to @Coinbase to @1confirmation

Nothing special just curiosity and hustle which everyone has, it just needs to be unlocked

Coinbase is now a giant that's easy to hate on but started as an underdog just like every other startup. @brian_armstrong launched it by himself in June 2012

I got curious after reading his Hacker News post (
https://t.co/t69Tz5E2Eb) and became one of the first users


Months earlier a @fredwilson post (https://t.co/wmu3WRuYCy) about BTC intrigued me and I made my first purchase by taking out cash from an ATM then going to a CVS to Moneygram it to Mt. Gox

Buying on https://t.co/lvwtxPqm8B was a huge improvement from that initial experience

Bitcoin wasn’t in high demand then so Brian sent "bitcents" to users 😂

Down the rabbit hole I went


July 2013: Cold emails ftw (this was one of many)
I have 4 email addresses on my Gmail Business account with 2 different domains, like this:
[email protected]
[email protected]
[email protected]
[email protected]

But I'm only paying for 1 account, 6$/month.

I'll show you how you can set this up, too, in 12 steps. 👇🏼

1. Go to
https://t.co/W4U4atKBWq and authenticate your paid account. Google always first shows me my private @gmail.com account to authenticate. If it does that to you, too, that's the wrong account. You really need to switch to the business account and authenticate/log in there.

2. On the admin panel click "Domains".

3. On the next page click "Manage Domains". Now you'll see 2 options to choose from: "Add a domain" and "Add a domain alias".


4. Add a domain, if you have a different set of users per domain. For example Ann is working for business A, Leo for business B. Ann would get the email address [email protected], Leo would get [email protected]. In this case you'd pay for each user added to each domain.


Google takes different per user prices depending on the plan you select. If you're on the Starter plan and pay 6$/user/month, you'd have to pay 6$/month for Leo for adding him to the business B domain. In total, you'd pay 18$/m in total for you, Ann and Leo for 3 email addresses.