17 U.S.C. § 512 · Since 2001
The DMCA, explained in plain English
The Digital Millennium Copyright Act is a 1998 US statute that decides what happens when somebody claims your video, your photos or your product page belong to them. It runs on forms and deadlines, and it was written for companies with lawyers. Most of the people it lands on don't have one.
A takedown hit me
Your video was pulled, your listing vanished, your account got a strike. You can push back, and there's a fixed clock on it.
Write a counter-notice → Someone took my workMy work was copied
Your product photos are on a competitor's store, your video was reuploaded, your text was lifted word for word.
Write a takedown notice →What the law actually does
The part of the DMCA you will meet is Section 512. It offers a bargain to any site that hosts what users upload: YouTube, Etsy, Shopify, a forum, your own comment section. The site is not liable for what its users post, on one condition: when a copyright owner sends a proper notice, the site takes the material down quickly.
That bargain explains almost everything you find strange about the process. The platform isn't judging who is right. It is protecting its own immunity. This is why your video comes down in an hour on a claim nobody checked, and why getting it back takes two weeks of waiting even when the claim was nonsense.
The part people miss
Nobody at the platform reads the dispute on the merits. A notice arrives, the material goes. A counter-notice arrives, the material comes back. The only body that decides who was actually right is a federal court, and almost nobody goes there. In practice the procedure is the outcome.
The deadlines that matter
Section 512 is mostly a set of clocks. Miss one and you lose by default, whichever side you're on.
When the notice is simply false
Bogus takedowns are cheap to send and expensive to absorb. That asymmetry is the whole problem, and it is the reason this domain existed in the first place.
The statute does contain a remedy. Section 512(f) makes anyone who knowingly materially misrepresents that material is infringing liable for the damages it caused, including legal fees. It cuts both ways: lying in a counter-notice exposes you the same way.
Read this before you file anything
Both a takedown notice and a counter-notice are signed under penalty of perjury. A counter-notice also means consenting to be sued in a specific federal court and agreeing to accept service of process there. These are not form fields. If you aren't certain you hold the rights, or that the removal was a mistake, stop and get advice from a lawyer.
Where it hits you
Every large platform bolts its own process on top of the statute, with its own forms, its own names for things, and its own extra rules. The differences are what trip people up.
Find out who copied you
Before you can send anything you need the URL of the copy. The search tool runs reverse image and exact-phrase searches across four engines at once, and explains how to preserve the evidence before the page changes.
Where this site comes from
anti-dmca.org went online in 2001, during the fight over the anti-circumvention rules in Section 1201, the part of the law that made it illegal to break a lock on something you own. The original site was a forum and a campaign, and it was cited by law schools and by the free-software press of the time. That material is kept at the archive, unedited.
The law it argued against is still here, and the people on the receiving end still get very little help. So the name stays, and the job is narrower now: explain the procedure accurately, hand you the document you need, and be honest about what the law will and won't do for you.