Fershad Irani
@fershad.com
Developer based in Taipei, Taiwan. CO2.js and Grid-aware Websites maintainer. I also play Touch Footy. 🇹🇼🇦🇺🏉🚴♂️
Wrote down a few thoughts about the direction I see website emissions estimation heading over the next 18 months, and some of the models and tools that I know of which are shaping that.
These are my reckons, you've probably got yours. Would love to hear them!
fershad.com/writing/webs...
These are my reckons, you've probably got yours. Would love to hear them!
fershad.com/writing/webs...
What's next for assessing website environmental impact - Fershad Irani
A look into where I think things are heading in the world of website emissions estimation as new tools and methodologies emerge.
fershad.com
September 9, 2026 at 7:08 AM
Wrote down a few thoughts about the direction I see website emissions estimation heading over the next 18 months, and some of the models and tools that I know of which are shaping that.
These are my reckons, you've probably got yours. Would love to hear them!
fershad.com/writing/webs...
These are my reckons, you've probably got yours. Would love to hear them!
fershad.com/writing/webs...
Bouncing around over the next few weeks. Traveling with my partner, but hit me up if you're around and want to catch up.
Amsterdam Aug 30 - Sept 1
Den Haag/Rotterdam Sept 1 - 4
Lucerne Sept 9 - 10
Zurich Sept 11 - 12
Berlin Sept 14 - 18
Amsterdam Aug 30 - Sept 1
Den Haag/Rotterdam Sept 1 - 4
Lucerne Sept 9 - 10
Zurich Sept 11 - 12
Berlin Sept 14 - 18
August 27, 2026 at 2:49 PM
Bouncing around over the next few weeks. Traveling with my partner, but hit me up if you're around and want to catch up.
Amsterdam Aug 30 - Sept 1
Den Haag/Rotterdam Sept 1 - 4
Lucerne Sept 9 - 10
Zurich Sept 11 - 12
Berlin Sept 14 - 18
Amsterdam Aug 30 - Sept 1
Den Haag/Rotterdam Sept 1 - 4
Lucerne Sept 9 - 10
Zurich Sept 11 - 12
Berlin Sept 14 - 18
Reposted by Fershad Irani
Our 💚 friends at the Green Web Foundation have written a case study on how we integrate carbon.txt with .eco profiles: www.thegreenwebfoundation.org/news/automat... 🙌 to @fershad.com for the post.
Automating sustainability disclosures for .eco domains with carbon.txt - Green Web Foundation
In this post, we look at how .eco domains have used carbon.txt to streamline the process of adding disclosures to organisational profiles.
www.thegreenwebfoundation.org
August 20, 2026 at 7:39 PM
Our 💚 friends at the Green Web Foundation have written a case study on how we integrate carbon.txt with .eco profiles: www.thegreenwebfoundation.org/news/automat... 🙌 to @fershad.com for the post.
Reposted by Fershad Irani
🌿 One question we often hear around the Web Sustainability Guidelines (WSG): what measures will have most impact?
A new document, published at W3C today, has impact ratings for each of the success criteria in the WSG: www.w3.org/TR/wsg-ir/
A new document, published at W3C today, has impact ratings for each of the success criteria in the WSG: www.w3.org/TR/wsg-ir/
Web Sustainability Guidelines (WSG) Impact Ratings
This document describes the impact ratings provided alongside Web Sustainability Guidelines (WSG). The ratings and timeframes support prioritisation of guidelines based on expected impact and when tha...
www.w3.org
August 18, 2026 at 1:17 PM
🌿 One question we often hear around the Web Sustainability Guidelines (WSG): what measures will have most impact?
A new document, published at W3C today, has impact ratings for each of the success criteria in the WSG: www.w3.org/TR/wsg-ir/
A new document, published at W3C today, has impact ratings for each of the success criteria in the WSG: www.w3.org/TR/wsg-ir/
Choosing sustainable hosting infrastructure relies on understanding who's taking energy decarbonisation steps & in which regions.
Here's one way @mrchrisadams.net & I hope can represent this nuance, so consumers can make informed decisions on their tech suppliers.
fershad.com/writing/deca...
Here's one way @mrchrisadams.net & I hope can represent this nuance, so consumers can make informed decisions on their tech suppliers.
fershad.com/writing/deca...
A repeatable way for showing how hosting providers are making progress decarbonising the energy they use - Fershad Irani
An idea about categorising the energy used by hosting infrastructure which shows progress, is repeatable, and incentivises meaningful decarbonisation.
fershad.com
August 17, 2026 at 1:39 PM
Choosing sustainable hosting infrastructure relies on understanding who's taking energy decarbonisation steps & in which regions.
Here's one way @mrchrisadams.net & I hope can represent this nuance, so consumers can make informed decisions on their tech suppliers.
fershad.com/writing/deca...
Here's one way @mrchrisadams.net & I hope can represent this nuance, so consumers can make informed decisions on their tech suppliers.
fershad.com/writing/deca...
@fastmail.com launching EU hosting for their email service shortly after I worked through the rest of my tech stack is very nice timing. Been using them for years, now I've switched my data region to the EU.
fershad.com/writing/euro...
fershad.com/writing/euro...
August 7, 2026 at 3:13 AM
@fastmail.com launching EU hosting for their email service shortly after I worked through the rest of my tech stack is very nice timing. Been using them for years, now I've switched my data region to the EU.
fershad.com/writing/euro...
fershad.com/writing/euro...
Lol someone in our work chat mentioned COP31, and I realised I hadn't yet been to the website. IYKYK 😅
July 29, 2026 at 7:27 AM
Lol someone in our work chat mentioned COP31, and I realised I hadn't yet been to the website. IYKYK 😅
Doing some research for some upcoming projects. One requirement is the services/platforms used are not tied US big tech, and ideally are EU based.
Anyone have pointers to server-side hosting (SSR sites, API endpoints), email marketing providers, or domain name registrars that might fit the bill?
Anyone have pointers to server-side hosting (SSR sites, API endpoints), email marketing providers, or domain name registrars that might fit the bill?
July 17, 2026 at 4:22 AM
Doing some research for some upcoming projects. One requirement is the services/platforms used are not tied US big tech, and ideally are EU based.
Anyone have pointers to server-side hosting (SSR sites, API endpoints), email marketing providers, or domain name registrars that might fit the bill?
Anyone have pointers to server-side hosting (SSR sites, API endpoints), email marketing providers, or domain name registrars that might fit the bill?
Through last year, and early this year, I was involved in creating something that might be useful to a few folks.
fershad.com/writing/wsg-...
fershad.com/writing/wsg-...
An impact framework for the Web Sustainability Guidelines - Fershad Irani
Telling the story of how I helped develop an impact ratings framework to make the Web Sustainability Guidelines more approachable.
fershad.com
July 12, 2026 at 2:12 PM
Through last year, and early this year, I was involved in creating something that might be useful to a few folks.
fershad.com/writing/wsg-...
fershad.com/writing/wsg-...
Reposted by Fershad Irani
Typhoon Bavi is approaching Taiwan.
From 1995-2025, 147 tropical cyclones came within 300 km of Taiwan, triggering sea warnings, land warnings, or making landfall.
On average, 4.9 affect Taiwan each year and 1.7 make landfall. About 73% occur between July and September.
#Taiwan #Typhoon #Weather
From 1995-2025, 147 tropical cyclones came within 300 km of Taiwan, triggering sea warnings, land warnings, or making landfall.
On average, 4.9 affect Taiwan each year and 1.7 make landfall. About 73% occur between July and September.
#Taiwan #Typhoon #Weather
July 10, 2026 at 6:02 AM
Reposted by Fershad Irani
The 2026 State of Devs survey is now open.
This survey's goal is to take the pulse of the developer community regarding things like career, workplace issues, and mental and physical health, and I think it's more important than ever right now!
survey.devographics.com/en-US/survey...
This survey's goal is to take the pulse of the developer community regarding things like career, workplace issues, and mental and physical health, and I think it's more important than ever right now!
survey.devographics.com/en-US/survey...
State of Devs 2026
Take the State of Devs survey
survey.devographics.com
July 7, 2026 at 2:23 AM
The 2026 State of Devs survey is now open.
This survey's goal is to take the pulse of the developer community regarding things like career, workplace issues, and mental and physical health, and I think it's more important than ever right now!
survey.devographics.com/en-US/survey...
This survey's goal is to take the pulse of the developer community regarding things like career, workplace issues, and mental and physical health, and I think it's more important than ever right now!
survey.devographics.com/en-US/survey...
Given the old film photography website a bit of a tweak over the weekend, and thrown in a handful of images from this year and last as well.
film.fershad.com
film.fershad.com
July 5, 2026 at 1:01 PM
Given the old film photography website a bit of a tweak over the weekend, and thrown in a handful of images from this year and last as well.
film.fershad.com
film.fershad.com
Japan black and whites.
Ilford FP4 might be my new favourite.
Ilford FP4 might be my new favourite.
June 29, 2026 at 1:51 PM
Japan black and whites.
Ilford FP4 might be my new favourite.
Ilford FP4 might be my new favourite.
Reposted by Fershad Irani
Taiwan has more registered vehicles than residents.
End of 2025:
23.30M people
23.40M registered vehicles
Biggest reason: Taiwan’s fleet of about 14 million motorcycles and scooters. Vehicle ownership is lowest in Taipei and highest in several rural counties
#Taiwan #Transportation #DataViz #Maps
End of 2025:
23.30M people
23.40M registered vehicles
Biggest reason: Taiwan’s fleet of about 14 million motorcycles and scooters. Vehicle ownership is lowest in Taipei and highest in several rural counties
#Taiwan #Transportation #DataViz #Maps
June 29, 2026 at 1:05 AM
Taiwan has more registered vehicles than residents.
End of 2025:
23.30M people
23.40M registered vehicles
Biggest reason: Taiwan’s fleet of about 14 million motorcycles and scooters. Vehicle ownership is lowest in Taipei and highest in several rural counties
#Taiwan #Transportation #DataViz #Maps
End of 2025:
23.30M people
23.40M registered vehicles
Biggest reason: Taiwan’s fleet of about 14 million motorcycles and scooters. Vehicle ownership is lowest in Taipei and highest in several rural counties
#Taiwan #Transportation #DataViz #Maps
Reposted by Fershad Irani
The "Taiwan Question" nobody wants to talk about
May 14, 2026 at 7:22 PM
The "Taiwan Question" nobody wants to talk about
Getting some film developed from 2025, and pull out these two bangers.
- Morning light at Izumo Taisha shrine
- Conversation in a Kyoto izakaya
- Morning light at Izumo Taisha shrine
- Conversation in a Kyoto izakaya
May 13, 2026 at 12:11 PM
Getting some film developed from 2025, and pull out these two bangers.
- Morning light at Izumo Taisha shrine
- Conversation in a Kyoto izakaya
- Morning light at Izumo Taisha shrine
- Conversation in a Kyoto izakaya
Friends, I'll be in Japan for a few days in May and June. I'd love meet with members of the tech community working on:
- Japan's energy transition
- The sustainability reporting landscape
- How Japan is thinking about data center growth and AI
If that's you, or someone you know, get in touch!
- Japan's energy transition
- The sustainability reporting landscape
- How Japan is thinking about data center growth and AI
If that's you, or someone you know, get in touch!
May 11, 2026 at 7:26 AM
Friends, I'll be in Japan for a few days in May and June. I'd love meet with members of the tech community working on:
- Japan's energy transition
- The sustainability reporting landscape
- How Japan is thinking about data center growth and AI
If that's you, or someone you know, get in touch!
- Japan's energy transition
- The sustainability reporting landscape
- How Japan is thinking about data center growth and AI
If that's you, or someone you know, get in touch!
Reposted by Fershad Irani
Australia is #7 in the world in terms of number of new data centres, between Canada and Japan - Green Web foundation's amazing new 'state of the fossil free internet' report is out now:
fossilfree.greenweb.org/2026/
fossilfree.greenweb.org/2026/
April 30, 2026 at 5:00 AM
Australia is #7 in the world in terms of number of new data centres, between Canada and Japan - Green Web foundation's amazing new 'state of the fossil free internet' report is out now:
fossilfree.greenweb.org/2026/
fossilfree.greenweb.org/2026/
Amazing work from my Green Web Foundation colleagues.
⚡ State of the Fossil-Free Internet ⚡
The report casts light on the opaqueness of climate disclosures made by the internet's largest players, while highlighting three pathways for an internet that serves everyone.
fossilfree.greenweb.org/2026/
⚡ State of the Fossil-Free Internet ⚡
The report casts light on the opaqueness of climate disclosures made by the internet's largest players, while highlighting three pathways for an internet that serves everyone.
fossilfree.greenweb.org/2026/
State of the Fossil-Free Internet Report
In this first annual briefing by Green Web Foundation, we examine the biggest obstacles to a fossil-free internet. This year’s focus: the rise of too many dirty data centres.
fossilfree.greenweb.org
April 29, 2026 at 10:56 PM
Amazing work from my Green Web Foundation colleagues.
⚡ State of the Fossil-Free Internet ⚡
The report casts light on the opaqueness of climate disclosures made by the internet's largest players, while highlighting three pathways for an internet that serves everyone.
fossilfree.greenweb.org/2026/
⚡ State of the Fossil-Free Internet ⚡
The report casts light on the opaqueness of climate disclosures made by the internet's largest players, while highlighting three pathways for an internet that serves everyone.
fossilfree.greenweb.org/2026/
Reposted by Fershad Irani
This is my favorite climate change chart. Japanese monks, aristocrats, and emperors kept meticulous records of cherry blossom festivals for 1,200 years and accidentally built the world's longest climate dataset.
April 1, 2026 at 2:23 PM
This is my favorite climate change chart. Japanese monks, aristocrats, and emperors kept meticulous records of cherry blossom festivals for 1,200 years and accidentally built the world's longest climate dataset.
Reposted by Fershad Irani
This looks like a great resource!
👉 To find out more about designing and building low-carbon websites, come to @pixelpioneers.co Bristol on 19 June, where @sustainable-dev.bsky.social will talk about exactly that:
pixelpioneers.co/events/brist...
👉 To find out more about designing and building low-carbon websites, come to @pixelpioneers.co Bristol on 19 June, where @sustainable-dev.bsky.social will talk about exactly that:
pixelpioneers.co/events/brist...
In 2022, I released a little project called "Are my third parties green?" so people can check the sustainability of third parties on the web. Nearly 5000 web page checks later it's time for an update!
It's still in beta, but you can give it a look over at amtpg.run (amtpg.run)
It's still in beta, but you can give it a look over at amtpg.run (amtpg.run)
Are my third parties green?
Test a website URL to find out if the third party resources it uses are hosted green.
amtpg.run
March 16, 2026 at 12:38 PM
This looks like a great resource!
👉 To find out more about designing and building low-carbon websites, come to @pixelpioneers.co Bristol on 19 June, where @sustainable-dev.bsky.social will talk about exactly that:
pixelpioneers.co/events/brist...
👉 To find out more about designing and building low-carbon websites, come to @pixelpioneers.co Bristol on 19 June, where @sustainable-dev.bsky.social will talk about exactly that:
pixelpioneers.co/events/brist...
Spending waaaaay more time on Pokemon Pokopia than I anticipated.
March 11, 2026 at 2:18 PM
Spending waaaaay more time on Pokemon Pokopia than I anticipated.
In 2022, I released a little project called "Are my third parties green?" so people can check the sustainability of third parties on the web. Nearly 5000 web page checks later it's time for an update!
It's still in beta, but you can give it a look over at amtpg.run (amtpg.run)
It's still in beta, but you can give it a look over at amtpg.run (amtpg.run)
Are my third parties green?
Test a website URL to find out if the third party resources it uses are hosted green.
amtpg.run
March 5, 2026 at 2:43 PM