Web trackers, on average, make some of the most-trafficked websites load twice as slow compared to when trackers are blocked, according to a new study published by Ghostery, a web tracker extension, and its parent company Cliqz.

Why it matters: A privacy reckoning around data collection from social media platforms has Americans paying more attention to how web trackers collect data, but this study shows that trackers aren't just a privacy problem. They can also cause terrible user experiences.

  • According the 2018 Tracker Tax Report study — which looks at the top 500 websites in the United States as determined by Alexa — each tracker dropped onto a webpage costs a user a half-second in load times.
  • The problem is pervasive. Nearly 90% of page loads had at least one tracker, according to the study. 65% had at least 10 trackers and about 20% had 50 or more trackers. Only 10% were tracker-free.
  • Ghostery warns that "piggybacking," or trackers that give other trackers access to a website, can be problematic, as they often aid in the slowdown of websites and make it difficult for website owners to track which user data is being collected by third parties.

Go deeper: You can log out, but you can’t hide.

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In photos: Virginians line up for hours on first day of early voting

Photo: Andrew Caballero-Reynolds/AFP via Getty Images

In some parts of Virginia, people waited in line up to four hours to cast their ballots on the first day of early voting, according to the Washington Post.

The big picture: The COVID-19 pandemic seems to already have an impact on how people cast their votes this election season. As many as 80 million Americans are expected to vote early, by mail or in person, Tom Bonier, CEO of TargetSmart, a Democratic political data firm, told Axios in August.

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 4:30 p.m. ET: 30,306,469 — Total deaths: 948,147— Total recoveries: 20,626,515Map.
  2. U.S.: Total confirmed cases as of 4:30 p.m. ET: 6,705,114 — Total deaths: 198,197 — Total recoveries: 2,540,334 — Total tests: 92,163,649Map.
  3. Politics: In reversal, CDC again recommends coronavirus testing for asymptomatic people.
  4. Health: Massive USPS face mask operation called off The risks of moving too fast on a vaccine.
  5. Business: Unemployment drop-off reverses course 1 million mortgage-holders fall through safety netHow the pandemic has deepened Boeing's 737 MAX crunch.
  6. Education: At least 42% of school employees are vulnerable.

Court battles shift mail-in voting deadlines in battleground states

Illustration: Sarah Grillo/Axios

Michigan joins Pennsylvania in extending mail-in ballot deadlines by several days after the election, due to the coronavirus pandemic and expected delays in U.S. Postal Service.

The latest: Michigan Court of Claims Judge Cynthia Stephens ruled that all ballots postmarked before Nov. 2 must be counted, so long as they arrive in the mail before election results are certified. Michigan will certify its general election results on Nov. 23.