Is it bad to have a number in your domain?

Your domain needs to be one word or one set of words. No hyphens and no numbers. It’s hard to verbally communicate a domain name that has a space or a number. When someone hears one of these domains it’s hard to know if a hyphen is required and if the numbers are written out as words or are numeric.

Can I use numbers in a domain name?

Numbers and hyphens are the only symbols allowed in your domain name. Spaces and underscores are not allowed, along with the symbols listed below.

What makes a domain invalid?

A malformed or invalid domain is a domain name located in an email address that has an error in spelling or syntax. These types of errors specify domains that do not exist and result in undeliverable emails.

What is the only special character allowed in the domain name?

hyphen
The only symbol allowable in a domain name is the hyphen, which can appear anywhere in the domain name other than as the first or last character. Beyond this, the only acceptable characters are the letters A to Z and the digits 0 to 9.

Can you use periods in domain names?

Periods cannot be registered under domain name rules. When you see periods in a URL it is referred to as a subdomain. Subdomains are intended to be used to host different content than what is found in the main domain and as an alternative to having to register a bunch of individual domain names.

How do I fix invalid domain?

Solution

1. The most effective way to resolve this is to add the correct domain name to the site key: Visit https://www.google.com/recaptcha/admin and log into your Google account. Choose your correct Site Key from the dropdown list.
2. Click on Settings.
3. In the Domains section, add the correct domain name.

Can domain name have special characters?

You can use letters, numbers and the hyphen “-” in a domain name. Unfortunately, special characters like, “_! @#$\%^&*,” are not allowed. Domain names cannot contain spaces or begin or end with a hyphen.