The visibility temperature badge
Take a reading, then embed the badge it produces. It is a one kilobyte SVG served from this site, it shows the temperature and band it was taken at, and it links back to the full reading so a sceptical visitor can verify it in one click.
That last part is the whole design. A badge that cannot be checked is decoration. A badge that links to a dated, reproducible reading is a small piece of evidence, and evidence is the only reason to put someone else's logo on your site.
There is no reading attached to this page yet. Take a reading first, then use the "Get the badge" button on the result.
Your badge
Paste this where you want it
What the badge shows
The temperature, the band, the hostname it was taken for, and nothing else. It is an SVG served from this site, so it stays sharp at any size and weighs about a kilobyte. It links back to the full reading, which means a visitor who is suspicious of a badge can check it in one click. That is the point of it.
The honest limitations
- It is a snapshot, not a live meter. The badge shows the reading as it was on the day it was taken. It does not re-measure itself, because a badge that silently changed on somebody's homepage would be a liability rather than a feature.
- Readings expire after 90 days. After that the badge renders an honest "expired" state rather than a broken image. Take a fresh reading and swap the snippet.
- It is one page, not the site. Badge the page you actually want judged.
- It is cached for an hour. Embedding it on a busy page costs you nothing and costs this server very little.
Using it on a competitor
Nothing stops you, and the reading is a fetch of a public page that anyone could repeat. Be aware of what you are doing, though: a badge showing a competitor at 41 degrees is a claim you are making in public, and it stops being true the moment they fix it. The version of this that works is the one where you badge your own number and let the comparison be implied. Compare two sites if the gap is the interesting part.