Jono Alderson
@jono.id
1.3K followers 440 following 98 posts
Award-winning technical SEO consultant. I help brands to compete on technical SEO, performance, and structured data. https://www.jonoalderson.com
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jono.id
I’ve been investigating dead websites for years.

Same symptoms every time - bloated code, missing structure, too many dependencies and not enough care.

It’s not murder. It’s neglect.

And it’s everywhere.

www.jonoalderson.com/misc/the-dea...
The death of a website
The call came in after midnight. Another site down. Same pattern. Same rot. Somebody’s killing the web, and nobody’s talking.
www.jonoalderson.com
Reposted by Jono Alderson
react.dev
Introducing the React Foundation
jono.id
Ooh, got a link to the deck?
Reposted by Jono Alderson
tunetheweb.com
I mentioned before that we’re switching Lighthouse Performance audits to the new and improved Insights. The same Insights that you can see in DevTools Performance panel traces.

That’s happening in Lighthouse 13 due to be released very soon. Maybe even this week!
jono.id
Yeah, this is super super cool
Reposted by Jono Alderson
ohgm.co.uk
For some reason when people say 'potential audience' or 'ideal customer' I'm fine, but as soon as they say 'persona' I think they are being too cowardly to admit they enjoy astrology.

1. I am being unfair.
but also
2. I have never seen personas applied in a way that didn't leave me more confused.
jono.id
Your brand isn’t what people say about you. It’s what machines remember about you. And they don’t forget.

Every slow page, broken checkout, and bad datapoint leaves a scar. Scars spread, harden, and make you invisible.

That’s the machine immune system at work.

www.jonoalderson.com/conjecture/m...
Marketing against the machine immune system
The future of marketing isn’t storytelling. It’s engineering trust into the systems that machines depend on.
www.jonoalderson.com
jono.id
My site passes! 😀
jono.id
🚨 New tool: Impolighthouse

Not just “how fast is my site?”, but “why is it slow, and what does that say about our org?”

A deliberately impolite wrapper on top of Lighthouse, that calls out your organizational cruft, blockers & bad decisions.

www.jonoalderson.com/impolighthou...
Impolighthouse
Get brutally honest performance feedback that actually tells you what's wrong and how to fix it.
www.jonoalderson.com
jono.id
The browser is striking back.

Bloated stacks, fragile abstractions, bad defaults - it’s all catching up with us.

I’ll dig into all of this at Web Directions Dev Summit, Nov 19–20 (Sydney + online).

💸 Codes: jonodevsummit25 / jonodevsummit25streaming

webdirections.org/dev-summit
Reposted by Jono Alderson
shane.co.uk
1999 - Notepad
2001 - Frontpage
2003 - Notepad++
2005 - Dreamweaver
2008 - Sublime Text
2016 - VS Code
2025 - Cursor

What does your Web Development journey look like?
Reposted by Jono Alderson
stephaniewalter.bsky.social
How many HTML tags can you remember? No cheating!
By Paul Foster

codepen.io/plfstr/full/...
Screenshot of a webpage titled HTML Tags Memory Test, with a blue background, a text field labeled Tag for entering guesses, and a numbered list of 45 recalled HTML tags including dl, dt, html, body, head, footer, div, p, h1 to h6, strong, em, link, and table.
Reposted by Jono Alderson
tunetheweb.com
Great post from @erwinhofman.bsky.social on webperf Interop proposals:

www.rumvision.com/blog/interop...

Upvote your favourite ones to let us know which are important to you!
Interop 2026: Key APIs for sitespeed & RUM
Real User Monitoring
www.rumvision.com
Reposted by Jono Alderson
markwilliamscook.com
If I ever say "Playbook" non-ironically, you have permission to delete my social media.
Reposted by Jono Alderson
jim.londoncentric.media
The Times appears to have interviewed an 'ex Buckingham Palace cleaner' who supposedly divulges royal stain removal secrets but doesn't seem to exist, is possibly AI, and probably placed by a PR agency to boost SEO for a tiling brand.

pressgazette.co.uk/news/royal-c...
Royal cleaner stories removed by Times and Sun after authenticity questions
Stories featuring a ‘royal cleaner’ who claimed to have worked for the Royals have been withdrawn over questions about their authenticity.
pressgazette.co.uk
jono.id
I also wonder why the actual SEO people don't take tech seriously.
Reposted by Jono Alderson
willkennard.com
WebFlow has built in support for LLMs.txt lol
Reposted by Jono Alderson
willkennard.com
“The name is misleading. no-cache actually means “store this, but revalidate before reusing it.”

Finally finished @jono.id guide to caching, took me about a week 🤣

www.jonoalderson.com/performance/...
A complete guide to HTTP caching
Despite being so fundamental, caching is one of the most misunderstood aspects of web performance.
www.jonoalderson.com
jono.id
It's sad that we've normalised SEO conferences - that claim to educate on best practices - being openly sponsored by parasitical link vendors.

That’s not just tone deaf; it’s disengenuous, hypocritical, and sells our classrooms those least interested in education and evolution.
jono.id
Most brand blogs are a waste of time.

Not because content doesn’t work - but because you’re doing it wrong.

Keyword sausage machines, “Admin” bylines, cautious filler…

It’s industrialised mediocrity, and it serves no purpose.

www.jonoalderson.com/conjecture/s...
If you want your blog to sell, stop selling
Stop trying to make every page a conversion engine. Accept that ads and content are different things. Be useful, be generous, be memorable.
www.jonoalderson.com
jono.id
Oh wow, yes. Flashbacks.