Andrew Betts @triblondon Twitter profile

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@mike_niwatori

@PUR3VECTOR

@kellywallacetv

Andrew Betts

@triblondon

9 years

Japanese numbers are great.

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Andrew Betts

@triblondon

7 years

Frighteningly plausible.

I’m harvesting credit card numbers and passwords from your site. Here’s how.

The following is a true story. Or maybe it’s just based on a true story. Perhaps it’s not true at all.

david-gilbertson.medium.com

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Andrew Betts

@triblondon

5 years

I’ve had this microwave for over a decade and I’m still too scared to press this button.

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Andrew Betts

@triblondon

8 years

New criteria for JS frameworks: 1. Get the T-shirt 2. Wait for T-shirt to wear out 3. Start using framework if it still exists

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Andrew Betts

@triblondon

8 years

AMP is breaking the web, and breaking the news. Also, being fast is great, but being right is better.

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Andrew Betts

@triblondon

8 years

Aliens make first contact with humanity by writing a letter to the FT. Classy aliens.

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Andrew Betts

@triblondon

8 months

If you own a website, loading a script implies an incredible relationship of trust with that third party. Do you actually trust them?

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Andrew Betts

@triblondon

8 years

Google I/O: the edited best bits, for web people. An exciting year for the web.

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Andrew Betts

@triblondon

8 months

Domains that serve popular 3rd party scripts are a huge security concern. The team at for example could read or modify almost any website in the world - like , or .

Wells Fargo Financial Services & Support

See how we’re helping customers succeed and communities thrive. For support 7 days a week, message us @WellsFargo

www.wellsfargo.com

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Andrew Betts

@triblondon

10 years

Upgrade the web! Announcing the FT polyfill service. http://t.co/3DTl0bPDVP by @SamuelGiles_

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Andrew Betts

@triblondon

8 years

Leaving the FT, joining Fastly!

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Andrew Betts

@triblondon

7 years

How do you force all your site's users to delete an errant item from the browser cache? My contribution to this year's perf calendar:

Clearing cache in the browser

Caching assets in the browser is the most common and most obvious way to improve front end performance. But at some point every developer accidentally makes a bad release of an asset with a long...

calendar.perfplanet.com

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Andrew Betts

@triblondon

8 months

No website today requires any of the polyfills in the library. Most features added to the web platform are quickly adopted by all major browsers, with some exceptions that generally can't be polyfilled anyway, like Web Serial and Web Bluetooth.

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Andrew Betts

@triblondon

6 years

Link rel=preload could be faster. Much faster in some cases. Here’s me on a possible future we could get with Early Hints:

How to get Faster Websites With Early and Priority Hints

Websites still load too slowly. During the most critical time in the page load lifecycle, your connection is often almost totally idle. At Fastly, we’re watching a new technology that hopes to make...

www.fastly.com

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Andrew Betts

@triblondon

9 years

FT hit another readership record today: 780,000 paying readers is highest in our 128 year history.

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Andrew Betts

@triblondon

7 years

Blue planet II is stupendous. This should be in cinemas. The patience and intuition needed to get a shot of an entire pod of SLEEPING whales... unbelievable.

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Andrew Betts

@triblondon

6 years

New on the @fastly blog: I looked at all the crazy headers that you all need to stop using immediately:

The headers we don't want

HTTP headers are an important way of controlling how caches and browsers process your web content. But many are used incorrectly or pointlessly, which adds overhead at a critical time in the loading...

www.fastly.com

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Andrew Betts

@triblondon

7 years

Developer conferences could be better. I tried to make them better with @edgeconf . This is what we learned:

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Andrew Betts

@triblondon

5 years

On a previous visit to Tokyo I left my hat in a jazz club. Today, roughly *eight months* later, I popped in and asked if they had it. Naturally, they did.

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Andrew Betts

@triblondon

9 years

Whoop. I just got elected to the @w3ctag ! I'm having a standard-sized biscuit to celebrate.

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Andrew Betts

@triblondon

5 years

I asked @Barclays to stop advertising in the Daily Mail and they send me this, which I'll paraphrase: 1. We agree that the Mail is bigoted (red) 2. We are going to continue supporting them (yellow) 3. We hope this resolves the issue for you (purple)

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Andrew Betts

@triblondon

10 years

Not everything is awesome: how we changed our job ads to improve diversity and quality of applicants http://t.co/ofMsEcQrA9

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Andrew Betts

@triblondon

6 years

It’s pride in London and it feels like the right time to show some. Being bi has been confusing and frustrating at times but it’s a label I’m finally happy to wear.

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Andrew Betts

@triblondon

8 years

Look seriously folks, terrorism isn't that hard to solve. In Japan they just put up a sign. Job done. #japan

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Andrew Betts

@triblondon

7 years

I WON THE BIG WEB QUIZ!!!!!1!1!1 #io17

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Andrew Betts

@triblondon

7 years

Morning spent at hospital having scans. No health insurance. Cost: £2.60 (coffee). Doesn’t seem that hard, America.

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Andrew Betts

@triblondon

2 months

I'm no longer at Fastly. Proud of the things I've achieved in the last 7 years. Grateful for the lifelong friends and mentors I met along the way. And looking forward to trying something new :-)

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Andrew Betts

@triblondon

7 years

That feeling when @timberners_lee likes your tweet but it’s literally the most inane thing you’ve said in your life.

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Andrew Betts

@triblondon

5 years

I was grateful to be nominated to the @amphtml advisory committee, but declined to stand because AMP remains an Abusive Monopolisation of the Platform by Google. I won’t support any effort to legitimise that.

AMP Advisory Committee midterm election results

In early August, we announced a midterm election for the AMP Advisory Committee (AC) with the goal of increasing the diversity of the AC’s membership. Right after we announced the election, Dane Kn…

blog.amp.dev

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Andrew Betts

@triblondon

6 years

Just queued to buy a ticket at the Kafka museum in Prague only to find tickets are not sold at this desk. Well played.

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Andrew Betts

@triblondon

6 years

Amazing. One of the promises of @amphtml was that it gives developers the ammunition to make their company do the right thing. Turns out, public policy is better.

Marcel Freinbichler

@fr3ino

6 years

Because of #GDPR , USA Today decided to run a separate version of their website for EU users, which has all the tracking scripts and ads removed. The site seemed very fast, so I did a performance audit. How fast the internet could be without all the junk! 🙄 5.2MB → 500KB

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Andrew Betts

@triblondon

6 years

Received an email receipt intended for another Andrew Betts and it contained his: - full 16 digit card number - expiry date - CVC code (!) - signature (as an image) - mobile number In other news, am really pleased with the new Audi I bought this morning.

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Andrew Betts

@triblondon

2 years

@callumlocke @SuB8u @FT Not only me, a very fun team effort. But one of my proudest legacies, I’ll be sad if it ever disappears!

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Andrew Betts

@triblondon

5 years

OMG CROSSRAIL CAUGHT IN LOWERCASE STATION NAME SHOCKER

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Andrew Betts

@triblondon

8 years

Just posted: Progressively less progressive, because I'm confused about what this word even means anymore.

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Andrew Betts

@triblondon

7 years

View from the new @Fastly London office is ❄️❄️❄️

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Andrew Betts

@triblondon

10 years

New IE replacement to have "Spartan/1" UA string! No just kidding it names every browser except itself.

Windows 10 Technical Preview IE UA String

Windows 10 Technical Preview IE UA String. GitHub Gist: instantly share code, notes, and snippets.

gist.github.com

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Andrew Betts

@triblondon

8 years

First day.

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Andrew Betts

@triblondon

8 years

The marvellous people at the Guardian just went live with @polyfillio - now used by multiple major news sites!

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Andrew Betts

@triblondon

4 years

Look I know I’ve said some stuff about AMP but Google this is mean.

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Andrew Betts

@triblondon

5 years

Had a party to celebrate Europe, with cake. A guest sat on the EU by mistake. I feel like this is a metaphor for something.

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Andrew Betts

@triblondon

5 years

On my London Underground line, at peak, I can no longer walk the length of the platform between train arrivals. - train every 40 sec - super clean - 24 hrs on weekends - 150 years old The tube is brilliant.

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Andrew Betts

@triblondon

8 years

Can't believe we're handing the fate of the worlds 5th largest economy to a bunch of idiots who named a ship Boaty McBoatface.

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Andrew Betts

@triblondon

6 years

London Web Performance is relaunching, and entering its third era, helmed by me, @AndyDavies and @simonhearne . Read more about our plans here: We're already in awe of how @perrydyball managed to do all the organising by himself.

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Andrew Betts

@triblondon

6 years

Geeeeeee Deeee P R It’s fun to unsubscribe with Geeeeeee Deeee P R

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Andrew Betts

@triblondon

7 years

Had a great time presenting about new HTTP headers at @scaleconf . Slides: . "Not @tbmcmullen but still good" is probably the best intro I've ever had too.

Headers for Hackers

The web is growing up and getting faster and more secure. Making that the default is hard to achieve when you have to be backwards compatible, and some …

speakerdeck.com

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Andrew Betts

@triblondon

6 years

Last week I wrote a blog for @fastly on HTTP headers that should disappear. Today, here are the ones you should add:

The headers we want

Manipulating HTTP headers is one of the most common things that Fastly customers do. Using the right combination of headers is one of the best things you can do for the security of your site, and...

www.fastly.com

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Andrew Betts

@triblondon

5 years

Facebook can’t do this if you use it via the mobile website. Use the web.

Jane Manchun Wong

@wongmjane

5 years

Facebook scans system libraries from their Android app user’s phone in the background and uploads them to their server This is called "Global Library Collector" at Facebook, known as "GLC" in app’s code It periodically uploads metadata of system libraries to the server

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Andrew Betts

@triblondon

6 years

Shout out to the guy in my gym listening to a podcast about anti social behaviour on speaker at maximum volume

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Andrew Betts

@triblondon

11 years

Good explanation of appcache replacement from @slightlylate , worth a read. (Long. You'll need supplies)

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Andrew Betts

@triblondon

6 years

@seldo The stage after that is realising that they're going to do it anyway.

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Andrew Betts

@triblondon

5 years

Just voted in Hammersmith and Fulham for @hammersmithandy . A decent MP and strong remainer with a conscience and an identity separate to his party. The @Conservatives are a cancer, killing the country and trashing our values. Please help stop this. Use your vote.

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Andrew Betts

@triblondon

5 years

Cake or Death? Reluctantly I'm having a go at @amphtml again.

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Andrew Betts

@triblondon

2 years

I've worked for @fastly for six years today, and finally, I can honestly say as an individual developer it is worth you trying us out. 400GB/mo and TLS certs are now totally free.

Your most-requested update for Fastly developer accounts

Fastly offers free TLS services so developers can test out Fastly with fewer barriers.

www.fastly.com

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Andrew Betts

@triblondon

6 years

Pride birthday cake seems like a great idea primarily because the cake has to be 2x the usual height in order to accommodate all the colours.

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Andrew Betts

@triblondon

6 years

Google just released an interview I did with @rick_viscomi about HTTP. Check it out for some simple tips on tuning your server for performance & security. Hat, model’s own.

Chrome for Developers

@ChromiumDev

6 years

In the latest State of the Web @triblondon of @Fastly and @Rick_Viscomi discuss the significance of HTTP header metadata for web performance and security. Watch here →

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Andrew Betts

@triblondon

4 years

@IanDunt Because it looks better. I like to take a little breather between sentences to avoid indigestion.

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Andrew Betts

@triblondon

4 years

Due to covid I’ve taken the difficult decision to postpone my 39th birthday until next year. Tickets will remain valid. Thank you for your support at this unprecedented time.

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Andrew Betts

@triblondon

4 years

You *are* coordinating your face mask with the rest of your outfit, right?

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Andrew Betts

@triblondon

5 years

@BarclaysUKHelp Already did that, as you can see, and no wish to go around in circles. I think you've made the position quite clear so let's make sure everyone else knows what it is too.

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Andrew Betts

@triblondon

7 years

Con........fer.....en..ce wi.....................................................................................................:.......fi.

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Andrew Betts

@triblondon

7 years

What's going on outside our office right now? BBC: "A police incident has closed Oxford Circus station" TfL: "Station closed, tickets will work on local busses" Twitter: "NUCLEAR WARHEAD IN DEBENHAMS!" This is not a good time to get news from Twitter.

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Andrew Betts

@triblondon

4 years

Christmas dinner for one 😋 A special Merry Christmas to anyone celebrating on their own for the first time.

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Andrew Betts

@triblondon

6 years

Just FIFTEEN HOURS until GDPR, people. Who’s excited?!?* [* by saying you are excited you consent to my remembering and reusing your state of excitement royalty free for any purpose worldwide.]

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Andrew Betts

@triblondon

7 years

Promote an IFRAME to be the top level page, replacing the page that loaded the IFRAME. A modest proposal:

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Andrew Betts

@triblondon

7 years

Just managed to balance 3 lemons, an onion, a dozen cherry tomatoes, 2 pints of milk and a cod on top of a tray of diced chicken and god damn it I am not paying 5p for a bag.

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Andrew Betts

@triblondon

4 years

The Fastly developer hub is now served using HTTP/3 over QUIC, specifically IETF draft h3-29, using our own implementation which we called... quicly. Obviously. Read more about our support of H3+QUIC here:

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Andrew Betts

@triblondon

8 years

Last day at Nikkei today. Not taking any chances.

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Andrew Betts

@triblondon

7 years

French co-working space. Every new person to arrive kisses every person already here before starting work. Terrifying.

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Andrew Betts

@triblondon

7 years

On all but two metrics this has to be the best way to get from Bangkok to Singapore.

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Andrew Betts

@triblondon

4 years

Facebook recruiter ignored my response and just emailed me again a week later (subj: "2nd attempt!!") as if I might still be interested. Was anything about this original exchange ambiguous? This time just hit the spam button.

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Andrew Betts

@triblondon

5 years

On Monday my first new hire for the developer relations team at @fastly starts and I’m VERY smug about this but won’t steal thunder by saying who it is.

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Andrew Betts

@triblondon

2 years

Super impressed at how, if your last sprint was called “2022 Q4”, Jira is able to intelligently suggest an appropriate name for the next sprint.

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Andrew Betts

@triblondon

6 years

In the mood for 4,500 words on authentication on the web and CDNs? I know, isn't everyone. Anyway I did a thing on the @fastly blog, just for you:

Patterns for authentication at the edge

Identity is a boring, but necessary element of most website builds. Validating a user’s identity and access rights is something that is in the critical performance path, required site-wide, and often...

www.fastly.com

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Andrew Betts

@triblondon

3 years

Taking a slightly inefficient route home but I didn’t have a district line face mask. Needs must.

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Andrew Betts

@triblondon

11 years

My #velocityconf talk is now available online. "The uncanny valley: matching native app perf on the web"

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Andrew Betts

@triblondon

7 years

It was a great honour to serve in the @w3ctag for two years. Congratulations to @lukOlejnik . His passion for user privacy comes at a crucial moment in the history of the Web.

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Andrew Betts

@triblondon

7 years

My first blog post for @fastly , and it's a big one! Everything you ever wanted to know about Vary at the edge:

Getting the most out of Vary with Fastly

You can use the `Vary` response header in creative ways, including A/B testing and internationalization. At the same time, many people still use `Vary` badly or misunderstand what it does; in this...

www.fastly.com

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Andrew Betts

@triblondon

7 years

The New York City subway makes more sense when you stop thinking of it as public transit and start considering it as a kind of dystopian immersive theatre performance.

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Andrew Betts

@triblondon

8 years

The FT has flown the EU and British flags from our HQ for years. Today we added the pride flag too.

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Andrew Betts

@triblondon

5 years

bf is stuck in China, trying to get a UK visa and now has barely left his tiny apartment in Shenzhen for two weeks due to #coronavirus but has taken to sending me weekly love letters on @LibertyLondon stationery.

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Andrew Betts

@triblondon

5 years

In which I tell you how you can use proof of work and @fastly to thwart account hacking on your website and yet don't say the word 'blockchain' even once.

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Andrew Betts

@triblondon

6 years

Shout out to the guy in the United lounge wearing pyjamas, drinking straight bourbon and watching Wheel of Fortune.

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Andrew Betts

@triblondon

6 years

A plane is about to deliver @sisidovski to London for 3 months and I am amped about showing him how things work outside Japan. We’ll begin immediately with novel concepts like “disorderly queue” and “train delay”

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Andrew Betts

@triblondon

6 years

Hipster guy working next to me in cafe was suddenly accosted by confused elderly lady with thick accent needing to set up her banking app. He’s now spent 45 mins on it, and is my hero.

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Andrew Betts

@triblondon

5 years

Does your company have some system or template that you have to use which is terrible? This is why, and how to fix it. Been working on this blog post for ages. Feedback welcome!

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Andrew Betts

@triblondon

6 years

The view from my desk in the Fastly London office. At least it’s not a car bomb today.

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Andrew Betts

@triblondon

7 years

Thought about going to @amphtml roadshow. Got bored waiting for the website to load.

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Andrew Betts

@triblondon

7 years

Great from @beep . For me the anti-competitive search practice is the most insidious part of AMP.

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Andrew Betts

@triblondon

7 years

Just finished my Programming the Edge workshop at #altitudeconf . 80 people pushed 3,500 new @fastly service configurations to our network in 60 minutes. And it all worked! Phew.

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Andrew Betts

@triblondon

6 years

After today’s @perfnowconf I got an enthusiastic email from an attendee thanking me for being “humble and approachable”. This was the highlight of my day. But this action says more about her than me. When did I last send someone an email like that, I wonder?

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Andrew Betts

@triblondon

8 years

Family Christmas: Dad: Rice milk Mum: Almond milk Sister: Soy milk Me: can I get the one that comes from a cow.

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Andrew Betts

@triblondon

5 years

Let’s get this straight. The UK government is denying entrepreneur visa applications on the grounds that we’re no longer a good place to do business? For a moment I thought this was a plot from The Thick of It but it’s too jawdroppinly stupid for fiction.

Catherine Taroni

@CatTaroni

5 years

Reviewing Tier 1 (Entrepreneur) refusal. First reason - the Entrepreneur Applicant viewed the UK as very stable for business but UKVI thinks it is not due to #Brexit . (How exactly is Brexit supposed to be factored into a business plan when no-one know what any rules will be?)

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Andrew Betts

@triblondon

2 years

I do happen to run a CDN!*. How to mitigate this on @fastly : [* with around a thousand other people]

Filter PNGs for Acropalypse using Compute@Edge

Last week, Simon Aaarons and David Buchanan posted their discovery that images cropped using...

dev.to

David Buchanan

@David3141593

2 years

🧵 How to mitigate Acropalypse, server-side: If you run a CDN or similar, you there's a fairly cheap technique you could use to transparently mitigate Acropalypse without having to re-process any of your stored data. (and save some bandwidth too!)

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Andrew Betts

@triblondon

7 years

Fastly serves polyfill.io 91 million browsers per day are automatically upgraded with the web's latest features. #FastlyHeartsOSS

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Andrew Betts

@triblondon

5 years

Oh look who just joined my team. Now I can finally delegate all those questions about types.

Dora

@doramilitaru

5 years

Today is my first day at @fastly :)

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Andrew Betts

@triblondon

5 years

No VMs, no cloud functions, no containers to boot. Your code from your language in a native binary running at the edge, in microseconds. Interested? Join the beta! 👇

Fastly

@fastly

5 years

📣Calling all developers 📣Meet Compute @Edge - our new language-agnostic compute environment. Our CTO @tbmcmullen lifts the veil on the next evolution of our edge computing capabilities, designed to give you the power (& speed) you've been looking for 💪

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Andrew Betts

@triblondon

7 years

The web owes a huge amount to Google and the people who work there. But great power must be used fairly. I’m co-signing

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