Answers without the jargon

Blocking means a device or network refuses a usual request. For gambling sites, that often means a domain name does not open in the browser you set up. The site still exists for other people. A block is a local barrier. It is not a guarantee that you cannot reach a casino or sportsbook another way. Blocking basics maps the places a rule can sit.

No. A website is the content. A domain name is the label people type. DNS, the directory of the internet, turns that label into addresses. Blocking the label closes a common door. An old saved address, or a different name for the same content, can be another door. Ongoing care explains why lists age.

It can slow a visit. It cannot treat harm, repair money already lost, or promise that an urge will pass. Gambling can cause harm even when software is in place. If play is no longer optional, speak with a qualified professional. The National Council on Problem Gambling is a known United States source of public information on this harm.

The National Council on Problem Gambling focuses on problem gambling education. SAMHSA is the federal Substance Abuse and Mental Health Services Administration. MedlinePlus, from the National Library of Medicine, explains health topics for the public. These are information bodies, not gambling operators. Safer choices says what each is known for.

Not always. Windows, macOS, Android, and iOS each have settings that can limit sites or apps. A browser extension is another option. A phone app is only one shape of barrier. Choose the device you actually use, then add a second layer if the first one leaves a clear gap. Blocking basics compares those layers.

WebExtensions is the shared model for add-ons in Mozilla Firefox and in Chromium-based browsers. A small manifest file plus JavaScript can watch for names you listed and show a stop page. JavaScript is a programming language, not a betting method. App parts describes the list, the check, and the message.

IPv4 and IPv6 are two ways to write a network address. A filter that understands only the older style can miss a site that answers on the newer style. A name-based rule is often broader, but only when the device still asks DNS. Review both if you maintain your own rules. Ongoing care includes a simple review table.

Only if you can read what it does and the permissions match that job. A tool that wants passwords, messages, or the power to hide itself is wider than a site pause. OWASP’s public guidance has long warned against running unexplained code. Prefer settings from the system you already trust, or an extension you wrote and can open.

No single age covers every state and every product. This site does not invent one. Check the law where you live before you rely on a number you heard elsewhere. Age rules are separate from software. A block does not make an underage visit lawful, and it does not replace a household rule.

It will not name gambling operators, suggest a way to win, or take a message off your device. The draft tool on the contact page only prepares text locally. For the limits of the writing itself, read Purpose and limits.