UOL media bias and reliability
Media Bias/Fact Check places UOL as leaning left. We have seen it on 147 published stories of ours.
The short answers
Is UOL biased?
Media Bias/Fact Check places UOL as leaning left. An outlet rating describes a broad pattern in its output, not every article it publishes.
Is UOL left or right?
Media Bias/Fact Check places UOL as leaning left. In the three-way grouping used on story pages, that puts it under Left.
Is UOL reliable?
The factual-reliability assessments we hold for UOL are Media Bias/Fact Check: High factuality. These are outlet-level assessments, not a guarantee that every report is correct.
What UOL has been covering
Our account of each story, written from every outlet that ran it, with UOL’s own report linked underneath.
Four crew members have completed a 378-day simulated mission to Mars at NASA's Johnson Space Center. The experiment aimed to study the effects of isolation and prepare for future human expeditions to the Red Planet.
UOL reported it as'In Captivity of Your Own Will': Simulation to Mars Ends After 378 Days (opens UOL in a new tab)
A fire damaged the Senatobia Police Department building on Saturday morning. The U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives and local agencies are investigating the incident. The department has been at the centre of controversy following an officer-involved shooting in June.
UOL reported it asFire Hits Police Headquarters Linked to Baby Death in the U.S. (opens UOL in a new tab)
Cryptocurrency exchange Binance is investigating a potential security issue on its platform. Stablecoin issuers Tether and Circle have frozen billions of dollars in assets connected to the incident, while Binance co-founder Changpeng Zhao stated user funds remain safe.
UOL reported it asBinance Faces the Biggest Cryptic Theft of History - 01/11/2026 (opens UOL in a new tab)
US Secretary of State Marco Rubio denied facilitating Flávio Bolsonaro's departure from Brazil to the United States. While Rubio stated President Trump authorized Bolsonaro's entry, he asserted the US government was not involved in arranging the travel itself.
UOL reported it asMarco Rubio: USA Did Not Help Flávio Bolsonaro Escape - 31/10/2026 (opens UOL in a new tab)
The United States cancelled a planned group photo at the G20 foreign ministers meeting in Atlanta due to deep rifts among member nations. Several European diplomats objected to standing alongside Russia's top diplomat, Sergey Lavrov, leading to the cancellation.
UOL reported it asG20 Puts Rubio and Vieira in Front for the First Time After Flavio's Escape (opens UOL in a new tab)
Patrick Stewart, the British actor famous for his roles as Captain Jean-Luc Picard in 'Star Trek' and Professor Charles Xavier in 'X-Men', has died at the age of 86. His death was announced by his family.
UOL reported it asPatrick Stewart, Actor of 'Star Trek' and 'X-Men', Dies at the Age of 86 (opens UOL in a new tab)
New York has enacted legislation restricting how AI companion chatbots interact with children under 18. The law, signed by Governor Kathy Hochul, defines a dozen prohibited 'unsafe AI companion features' and takes effect January 1.
UOL reported it asNY Veta AI Chatbots Who Fake Friendship and Dating with Children (opens UOL in a new tab)
President Donald Trump stated he does not "give a damn" about criticism regarding the United States making a "fortune" from high oil prices. He claimed the US oil and gas industry was making "hundreds of billions of dollars" due to events in the Middle East.
UOL reported it asTrump Says the U.S. Profits with War While Gasoline Goes Up (opens UOL in a new tab)
Donald Trump announced a $1 million reward for information leading to the arrest and conviction of individuals involved in election fraud. The offer applies to past and upcoming midterm elections and was made via his social network, Truth Social.
UOL reported it asTrump Offers US$ 1 Mi to Anyone Pointing Fraud (opens UOL in a new tab)
Brazil's Liberal Party, the political group for which Senator Flávio Bolsonaro ran, has officially recognized the results of the presidential election. The party's president signed a statement acknowledging the outcome proclaimed by the Superior Electoral Tribunal, while also calling for clarification on issues raised by Bolsonaro.
UOL reported it asFlavio Refuses to Ask for Annulment of the Lawsuit and Will Act Lula - 26/10/2026 (opens UOL in a new tab)
Luiz Inácio Lula da Silva has secured a fourth term as Brazil's president, defeating right-wing Senator Flavio Bolsonaro. Bolsonaro challenged the election results, while international leaders congratulated Lula on his victory and commitment to democracy.
UOL reported it asElections 2026: an Uneasy Vote - 24/10/2026 - Hélio Schwartsman (opens UOL in a new tab)
Israeli soldiers shot and killed two men near Hebron in the occupied West Bank. At least five people were injured. Israel's military stated the men carried firearms. Following the incident, Israel ordered its army to prepare for a full closure of the West Bank.
UOL reported it asNetanyahu Orders 'Total Closure' of the West Bank Days Before the Elections (opens UOL in a new tab)
Tesla has unveiled a redesigned Roadster at SpaceX's Texas facility, featuring rocket-style thrusters that enabled it to perform aerial stunts. Production is planned to begin in 2028, with claims of accelerating from 0 to 100 km/h in under a second.
UOL reported it asTesla Made Her Car Fly, but Reality to the Streets Is Still a Distant Dream (opens UOL in a new tab)
Ukrainian President Volodymyr Zelensky has stated he would accept a peace agreement to freeze the war along current front lines, calling it a realistic way to end the conflict. The comments were made in a Fox News interview.
UOL reported it asZelenski Agrees to Freeze Front; Putin Reopens Negotiations (opens UOL in a new tab)
A Colombian judge issued a provisional order to safeguard more than 30 historical pieces removed from the National Museum of Colombia. The removals were part of a conservative government drive to revise historical narratives, prompting protests and a legal challenge by left‑wing organisations.
UOL reported it asColombia:Espriella Shorts Feminist Items and LGBT+ Museum (opens UOL in a new tab)
US Secretary of State Marco Rubio told media that a peace agreement with Iran is extremely difficult and that economic pressure will stay in place until Tehran stops attacks on commercial vessels in the Strait of Hormuz. Iran’s foreign minister said the strait will remain closed until the US accepts Tehran’s terms, noting indirect talks via Pakistan and Qatar.
UOL reported it asTrump Could Lose Congress and Still Expand the U.S. War Against Iran - Opera Magazine (opens UOL in a new tab)
An artificial intelligence model can predict cancer patients' survival risk and biological aging from a single facial photograph. The research, conducted by Mass General Brigham, used a model trained on over 40 million facial images.
UOL reported it asAI Analyzes Photo of the Face and Estimates Risk of Death in Cancer Patients (opens UOL in a new tab)
Jaden John Read, 24, was arrested in Kansas on charges of threatening President Donald Trump. The alleged threats were posted on Facebook ahead of a planned rally in Wichita, leading to a Secret Service investigation.
UOL reported it as'Let's Shoot': Man Poses Threats Against Trump Before the Rally and Gets Arrested (opens UOL in a new tab)
Indigenous communities in the Brazilian Amazon face potential disenfranchisement due to a court's denial of transportation assistance. The Amazonas Electoral Justice blocked river transport, water, and food for 43 villages in the Javari Valley on election day.
UOL reported it asTRE Rejects Request for Boats for Indigenous Vote in Javari - 20/10/2026 - Mônica Bergamo (opens UOL in a new tab)
North Korean state media released undated images of leader Kim Jong Un inspecting shoes and women's clothing. The photos emerged after unverified claims circulated online alleging he had suffered a brain haemorrhage and died.
UOL reported it asState Media Releases Photos of Kim Jong-UN After New Death Rumors (opens UOL in a new tab)
Who says so
One organisation has published a rating for this outlet. Where they disagree, the disagreement is the useful part and it is left standing.
- Media Bias/Fact CheckleanLeftCheck it
How reliably it reports fact
A rating of the newsroom in general, by others, and a different thing from the Trust score we publish on each story, which judges one piece of reporting.
High factuality
- Media Bias/Fact CheckhighCheck it
Who owns it
- Grupo FolhaMedia Conglomeratedirect owner
Where it publishes from
- Publishes from
- São Paulo, State of São Paulo, Brazil
- Official site
- uol.com.br
- Seen publishing on
- uol.com.br, noticias.uol.com.br, www1.folha.uol.com.br, economia.uol.com.br, revistaopera.operamundi.uol.com.br, c-level.folha.uol.com.br
- Access
- Free to read
- Wikipedia
- Entry
What we have seen ourselves
Counted across the stories this site has published, which is the only denominator a reader can check: every one of them has a page, and every page lists the reports it was written from.
- Stories
- 147
- Reports listed
- 151
- We could read
- 10
- First seen
- 4 August 2026
141 of those reports were paywalled or blocked to us. Our reading of this outlet is built on the 10 we could open, not on everything it published.
On 59 of those stories, outlets rated left were largely absent from the coverage and UOL ran the story anyway.
Across the 147 stories of ours where at least three of the reports we listed carried a time, we logged no report earlier than UOL’s on 5 of them. Overall it filed a median of 27 hours after the earliest report we logged.
Measured 2 November 2026. Last seen in a coverage list 2 November 2026. Ratings pulled 5 October 2026.
Think this page is wrong?
The leanings above are published by AllSides, Ad Fontes Media and Media Bias/Fact Check, and we republish them rather than make them. If you think one is misapplied, the strongest place to say so is with the organisation that made it, and every verdict here links to their page.
What we are responsible for is everything else: the ownership chain, where UOL publishes from, which of our stories we have listed it on, and whether we have the right publisher at all. Tell us what is wrong and an editor reads it.
Report something wrong on this page
Anything we correct is written up in the public corrections log. We do not publish reader votes as a rating, because an unattributed rating is the thing this site exists to argue against.
Every rating on this page is a named third party’s published work, republished with its author and, where one exists, a link to it. Our own coverage record is the section we measure ourselves. Neither is a judgement of any individual report: those are scored story by story, and the reasoning is on our methodology page.