Posted on 11 February 2022

Do I need to add WWW to my domain name in an email signature?

No. You do not need www in the website line of an email signature. Drop it. Keep the clickable link working. Show the short name people can remember.

WWW was a folder label, not a brand

Early servers used www as a hostname so a machine could also run ftp or mail on the same domain. The first website at CERN was meant to live at info.cern.ch, not at a www address. The prefix stuck because browsers and teaching materials kept typing it, not because brands needed it.

On paper, on a van, and in a signature, mirosign.com is easier to read than www.mirosign.com. That is why large brands drop www in print. There is a long-running argument for this at dropwww.com.

The signature has two jobs for a URL

People should recognise the name. They should also be able to tap it. Neither job requires displaying www.

• Visible text: mirosign.com
• Href: https://mirosign.com (or whatever your canonical host is)

If your site only answers on the www host, that is a DNS and redirect job, not a typesetting job. Point both hosts at the same site, pick one canonical, and still print the short version.

Does www in an email signature hurt SEO?

No. Google does not rank you on whether the words in your signature include www. Search cares about the site, the redirects, and the content. The signature is a brand label. Shorter is easier to remember. That is the whole SEO-adjacent point.

The extra W is the real crime

Worse than www is labelling the line as if the reader cannot see a domain:

W www.mirosign.com

or

W: www.mirosign.com

or

Web: www.mirosign.com

That is four reminders that a website is a website, usually sitting next to E: jo.smith@mirosign.com in case anyone might confuse an email address with a phone number. If the address is clickable and looks like an address, you do not need the legend.

What Mirosign does with www

The designer strips www from the visible domain, and strips http:// from the visible text, while leaving a proper https:// on the actual link. You get a short line that still opens the site.

If you are building the signature by hand, do the same: short visible text, real HTTPS link, no W: prefix. Then design it once so every client does not get a different version of the URL.