Alt Text

I’m the website administrator for Seattle Worldcon 2025, and I decided to run a bit of an experiment with the site, playing with an idea I’d been toying with for next year’s Norwescon website.

As I’ve been learning more about accessibility over the past few years, I’ve been working on transferring what I learn over to both the Norwescon and Worldcon websites as I’ve been working on them. Since alt text on images is one of the baseline requirements for good accessibility, I’ve been making sure that we have decent alt text for any images added to either site.

Of course, when working with other people’s art and images, there’s always a little question of whether the alt text I come up with would be satisfactory for the artist creating the image. So, I figured, why not see if I could more directly involve them?

When we were collecting signups for the fan tables, art show, and dealers’ room, as I was building the registration forms, whenever we asked for a logo or image to be uploaded, I added an optional field to allow the user to include alt text for the image they were uploading. I didn’t expect everyone using the form would take advantage of this — not everyone is familiar with alt text, some might not entirely understand what the field was for, and some might just find the extra field confusing — but I figured it would be worth a shot to see what happened.

Without showing how many of each type of application Worldcon received (because I don’t know if our Exhibits department would want that publicized beyond the “more than we have spots for” for each category that they’ve already said), here’s a breakdown of the percentages of each application type that included a logo image, and how many of those included alt text.

As far as this goes, I’d say it was a pretty successful experiment, with between 63% and 87% of submitted images including alt text that we could then copy and paste into the website backend and code as we built the pages that used them, both saving us time and effort and ensuring that the alt text was what the people filling out the form would want it to be. Not bad at all!

Of course, simply having alt text is only part of the equation. The next question is how good is the submitted alt text?

Not surprisingly, it’s a bit all over the place. Some were very simple and straightforward, with just a business name, or the name with “logo” appended. Some described the logo in varying levels of detail. And some went far beyond just describing the logo, occasionally including information better suited other fields on the form that asked for a promotional description of the business, organization, or artist. That said, there were very few instances where I considered the submitted text to be unusable for its intended purpose.

Later on when I have more time, I might dive a bit more into the submissions to do a more detailed analysis of the quality of the submitted alt text. But for now, I’m quite satisfied with how this worked out. I fully intend on doing this for Norwescon’s website next year and onward, and would recommend that other conventions (and other organizations or businesses) that accept user image uploads to also allow users to provide their own alt text.

In the meantime, feel free to check out the final results of this experiment on Worldcon’s Art Show, Dealers’ Room, and Fan Table pages…and if any of this inspires you to come to Worldcon (if you’re not already planning to), stop by my presentation on digital accessibility for conventions (currently scheduled for 4:30 p.m. on Saturday, August 16)!