Another message toward the bottom of the screen adds: "We can't complete this request because this link has been identified by Twitter or our partners as being potentially harmful. Visit our Help Center to learn more." The message doesn't elaborate on why the website is "potentially harmful" and doesn't identify who "our partners" might be.
Some users later posted that including the text, "defendingtherepublic dot org," is a way to circumvent Twitter's censors.
When one clicks on a link to Powell's website that successfully went through on Twitter, the website includes a "warning: this link may be unsafe" message. "The link you are trying to access has been identified by Twitter or our partners as being potentially spammy or unsafe," it reads.
Twitter hasn't responded to a request for comment.
The website includes links to read her recent court filings as well as the ability to donate to her fund.
"Defending the Republic was established by Sidney Powell to defend and to protect the integrity of elections in the United States," the website reads. "Please contribute below, using our secure system. Your donation will support our mission and the welfare of the American Republic."
It adds: "Millions of dollars must be raised to defend the Republic as these lawsuits continue to be filed to ensure victory ... The future of our Republic is at stake. The left, the media, and a complicit Republican Establishment are attempting to steal this election through a staggering voter fraud operation. The time to fight is now!"
Various secretaries of state, the Department of Homeland Security's cybersecurity division, and Dominion Voting Systems have denied Powell's claims.
Twitter also suspended the account of Pennsylvania Sen. Doug Mastriano (R-York), who called an election oversight hearing that presented allegations and evidence of voter fraud this week. “Twitter suspends accounts which violate the Twitter Rules,” the technology company posted on his page.
Earlier this week, after Trump's legal team confirmed Powell wasn't part of their efforts, Lt. Gen Michael Flynn said Powell's account was suspended for 12 hours.
Twitter and Facebook have drawn criticism from congressional Republicans in recent days over their moves to either block the sharing or limit the reach of certain content. The New York Post's account on Twitter was locked for several weeks after it reported on explosive claims surrounding Democrat Joe Biden's son's business dealings.