Thank you for asking this question. Unfortunately, it is not a simple matter to get an order over a foreign website to take down defamatory speech. That being said, it is not impossible.
In short, you would file suit in Massachusetts District Court
seeking an injunction against the website on the grounds of defamation
Here are the steps you would take:
1. Find out where the website's corporate headquarters are. This isn't necessarily where the website is hosted, but where its offices are or where the owner lives.
2. You would file a petition in District Court claiming Defamation. To prevail on his defamation claim, you have to establish that the website published a false statement about you to a third party (websites naturally publish to 3rd parties) that either caused you economic loss or was of the type that is actionable without proof of economic loss. See White v. Blue Cross & Blue Shield of Mass., Inc., 442 Mass. 64, 66, 809 N.E.2d 1034 (2004); Eyal v. Helen Broadcasting Corp., 411 Mass. 426, 429-430, 583 N.E.2d 228 (1991). See also Restatement (Second) of Torts
§ 558 (1977). A false statement that "would tend to hold the plaintiff up to scorn, hatred, ridicule or contempt, in the minds of any considerable and respectable segment in the community," would be considered defamatory, Stone v. Essex County Newspapers, Inc., 367 Mass. 849, 853, 330 N.E.2d 161 (1975), [**554] and the imputation of a crime is defamatory per se, requiring no proof of special damages
. See Lynch v. Lyons, 303 Mass. 116, 118-119, 20 N.E.2d 953 (1939). The element of publication is satisfied where the defamatory communication is transmitted to even one person other than the plaintiff. See Brauer v. Globe Newspaper Co., 351 Mass. 53, 56, 217 N.E.2d 736 (1966); Restatement (Second) of Torts, supra at § 577 [***9] . Contrast Economopoulos v. A. G. Pollard Co., 218 Mass. 294, 297, 105 N.E. 896 (1914) (no publication where defamatory words, spoken in presence of others, uttered in foreign language and only understood by plaintiff). Your petition would need to state this. District court is a small claims
court, so the pleading requirements are not strict. Your local court may have forms which you can use to fill out your claim.
3. File the petition, have the clerk issue a citation for service of process (forms should be available at the court), and have the website served. This will require hiring a foreign process server to find the website's office and serve them with the court documents. Once you have located the country in which the website's offices are, you can google a process server in that country to serve the papers.
4. Since the Defendant is not in the country, it will likely not answer the lawsuit. At that point, after the statutory waiting period is over (which is usually 20-30 days from the date you have the defendant served), you move for a "Default Judgment". This is a motion which lays out all the evidence you have to meet the elements of Defamation. Then you set the motion for a hearing by calling the clerk of the court. On the hearing date you go to court and tell the judge you want a default judgment.
5. You will need to draft the judgment to state that the website is ordered to take down the defamatory statements immediately. Once you have that order you can send it to the website.
This is a simplification of the process and may involve many different issues which you will have to confront when they arise. Being a small claims court, the District court may help you out when it comes to various procedures.