Put a banner on your blog

If a brand has made you its referrer, you have a code. This turns it into a banner.

<a href="https://bullmark.net/r/YOUR-CODE"><img
   src="https://api.bullmark.net/banner/YOUR-CODE.svg"
   alt="claim a voucher on Bullmark" width="468" height="60"></a>

Copy it from My Referrals → your contract → banner for your blog, where it comes pre-filled with your code and shows you the image before you paste it.

It stops promising by itself

A blog post outlives a campaign. The usual problem with an affiliate banner is that it keeps shouting “30% off” long after the offer is gone — and the reader clicks through to nothing.

This image is rendered when it is fetched, so it follows the contract:

| while the contract runs | the banner offers the discount your landing page honours | | when it ends, or is cancelled | it says the offer has ended, and still points at the brand | | when nothing is left to hand out | it says so rather than advertising a discount |

You never have to go back and edit the post. Leave the link where it is.

It never gives you a broken image

A mistyped code, a deleted contract, a code that was never real — all of them return a working banner. A broken image is a hole in your post that you cannot see, months after you wrote it, so there is no case where we answer with one.

What is on it

The brand’s name and the discount on offer. That is all.

Your contract terms — what you are paid per redemption, your cap, your sale share — are between you and the brand and never appear on the image. It needs no key, so anyone who guesses a code can fetch it; it carries nothing that is not already public.

Notes

• The image is 468×60. Give the <img> its width and height so the post does not jump while it loads.
• It is cached for half an hour, so a change in the offer shows up the same day rather than the same second.
• The image comes from api.bullmark.net; the link goes to bullmark.net/r/{code} — that is the page that does the attribution, and the one that matters.