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Why do websites and apps go down? Common causes explained

Websites and apps can go offline because of overloaded servers, DNS failures, software bugs, cloud or network problems, cyberattacks and physical infrastructure failures. Understanding these causes helps explain why even major online services can experience outages. Even the world’s largest websites and apps can suddenly stop working. Users may see blank pages, failed logins, endless loading screens, connection errors or messages such as 502, 503 and 504.

Internet & Technology

29 Sep 2026 13:15 PM

Why do websites and apps go down? Common causes explained

Websites and apps can go offline because of overloaded servers, DNS failures, software bugs, cloud or network problems, cyberattacks and physical infrastructure failures. Understanding these causes helps explain why even major online services can experience outages. Even the world’s largest websites and apps can suddenly stop working. Users may see blank pages, failed logins, endless loading screens, connection errors or messages such as 502, 503 and 504.

Internet & Technology

What is Downdetector and how does it track internet outages?

Downdetector is a real-time outage monitoring service that tracks user reports and other signals for websites, apps and online services. Its charts can reveal unusual disruption patterns, but the totals should not be treated as confirmed counts of affected customers. When a major app, website or online service stops working, Downdetector is often one of the first places users check. The platform monitors reports of service problems across internet provider

Internet & Technology

29 Sep 2026 13:10 PM

What is Downdetector and how does it track internet outages?

Downdetector is a real-time outage monitoring service that tracks user reports and other signals for websites, apps and online services. Its charts can reveal unusual disruption patterns, but the totals should not be treated as confirmed counts of affected customers. When a major app, website or online service stops working, Downdetector is often one of the first places users check. The platform monitors reports of service problems across internet provider

Internet & Technology

Deadly Winter Storm: Heavy Winds, Rain, and Power Outages Impact U.S.

This month, a severe winter storm swept across the United States, causing widespread chaos, fatalities, and significant damage. The storm, which struck from the mid-Atlantic to the South, left at least seven people dead and nearly half a million energy customers without power. The deadly storm began with strong winds, heavy rain, and even the formation of tornadoes. In Michigan, four people tragically lost their lives as a result of the storm, with one incident involving a tree falling onto a

Nature

01 Apr 2025 07:09 AM

Deadly Winter Storm: Heavy Winds, Rain, and Power Outages Impact U.S.

This month, a severe winter storm swept across the United States, causing widespread chaos, fatalities, and significant damage. The storm, which struck from the mid-Atlantic to the South, left at least seven people dead and nearly half a million energy customers without power. The deadly storm began with strong winds, heavy rain, and even the formation of tornadoes. In Michigan, four people tragically lost their lives as a result of the storm, with one incident involving a tree falling onto a

Nature

South Texas Faces Historic Flooding as Harlingen Receives Record Rainfall

South Texas has faced a severe and historic weather event this week, as officials report record-breaking rainfall that caused significant flooding in multiple cities, including Harlingen, Alamo, and Weslaco. Harlingen, which received over 21 inches of rain, experienced the heaviest downpour on Thursday. This intense weather event prompted emergency rescues of more than 200 residents, with hundreds more still waiting for assistance. The storm’s impact was felt across the region, with aut

Nature

29 Mar 2025 08:18 AM

South Texas Faces Historic Flooding as Harlingen Receives Record Rainfall

South Texas has faced a severe and historic weather event this week, as officials report record-breaking rainfall that caused significant flooding in multiple cities, including Harlingen, Alamo, and Weslaco. Harlingen, which received over 21 inches of rain, experienced the heaviest downpour on Thursday. This intense weather event prompted emergency rescues of more than 200 residents, with hundreds more still waiting for assistance. The storm’s impact was felt across the region, with aut

Nature

Severe Storms and Tornadoes Hit North Texas, Causing Power Outages and Extensive Damage

A powerful line of severe storms swept through North Texas early Tuesday morning, bringing hurricane-force winds, heavy rain, and multiple tornadoes. The storms caused widespread power outages, structural damage, and traffic disruptions across the region. Cities including Dallas, Irving, Carrollton, Haltom City, and Cedar Hill were hit hard, with some areas experiencing wind gusts exceeding 70 miles per hour.The National Weather Service confirmed an EF-1 tornado in Irving, with wind speeds re

Nature

05 Mar 2025 00:21 AM

Severe Storms and Tornadoes Hit North Texas, Causing Power Outages and Extensive Damage

A powerful line of severe storms swept through North Texas early Tuesday morning, bringing hurricane-force winds, heavy rain, and multiple tornadoes. The storms caused widespread power outages, structural damage, and traffic disruptions across the region. Cities including Dallas, Irving, Carrollton, Haltom City, and Cedar Hill were hit hard, with some areas experiencing wind gusts exceeding 70 miles per hour.The National Weather Service confirmed an EF-1 tornado in Irving, with wind speeds re

Nature

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Israel Lebanon strikes deepen Iran-US tensions over Hormuz

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#outages

Why do websites and apps go down? Common causes explained

Why do websites and apps go down? Common causes explained

What is Downdetector and how does it track internet outages?

What is Downdetector and how does it track internet outages?

Deadly Winter Storm: Heavy Winds, Rain, and Power Outages Impact U.S.

Deadly Winter Storm: Heavy Winds, Rain, and Power Outages Impact U.S.

South Texas Faces Historic Flooding as Harlingen Receives Record Rainfall

South Texas Faces Historic Flooding as Harlingen Receives Record Rainfall

Severe Storms and Tornadoes Hit North Texas, Causing Power Outages and Extensive Damage

Severe Storms and Tornadoes Hit North Texas, Causing Power Outages and Extensive Damage

Virat Kohli Fined for Shoulder Barge with Sam Konstas in 4th Test

2025 Allergy Season Intensifies With Record Pollen Levels Across the U.S.

Youth under 19 no longer eligible for gender surgeries at Stanford starting June 2025

Surgeon General Vivek Murthy: Urgent Call to Address Mental Health and Social Media's Impact on Youth

Sonam Warned Family Before Marrying Raja, Then Plotted His Murder

Meta Youth Addiction Trial Could Reshape Instagram and Facebook

US Increases Evacuation Flights and Warns Americans Abroad Amid Iran Retaliation Fears

"Express Train Collision in Tamil Nadu: Passenger Coaches Catch Fire"

Israel Lebanon strikes deepen Iran-US tensions over Hormuz

Nationwide Healthcare Strike: Doctors Protest Over Kolkata Doctor's Rape-Murder with 24-Hour Walkout

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Virat Kohli Fined for Shoulder Barge with Sam Konstas in 4th Test

2025 Allergy Season Intensifies With Record Pollen Levels Across the U.S.

Youth under 19 no longer eligible for gender surgeries at Stanford starting June 2025

Surgeon General Vivek Murthy: Urgent Call to Address Mental Health and Social Media's Impact on Youth

Sonam Warned Family Before Marrying Raja, Then Plotted His Murder

Meta Youth Addiction Trial Could Reshape Instagram and Facebook

US Increases Evacuation Flights and Warns Americans Abroad Amid Iran Retaliation Fears

"Express Train Collision in Tamil Nadu: Passenger Coaches Catch Fire"

Israel Lebanon strikes deepen Iran-US tensions over Hormuz

Nationwide Healthcare Strike: Doctors Protest Over Kolkata Doctor's Rape-Murder with 24-Hour Walkout

#outages

Why do websites and apps go down? Common causes explained

Why do websites and apps go down? Common causes explained

What is Downdetector and how does it track internet outages?

What is Downdetector and how does it track internet outages?

Deadly Winter Storm: Heavy Winds, Rain, and Power Outages Impact U.S.

Deadly Winter Storm: Heavy Winds, Rain, and Power Outages Impact U.S.

South Texas Faces Historic Flooding as Harlingen Receives Record Rainfall

South Texas Faces Historic Flooding as Harlingen Receives Record Rainfall

Severe Storms and Tornadoes Hit North Texas, Causing Power Outages and Extensive Damage

Severe Storms and Tornadoes Hit North Texas, Causing Power Outages and Extensive Damage

Virat Kohli Fined for Shoulder Barge with Sam Konstas in 4th Test

2025 Allergy Season Intensifies With Record Pollen Levels Across the U.S.

Youth under 19 no longer eligible for gender surgeries at Stanford starting June 2025

Surgeon General Vivek Murthy: Urgent Call to Address Mental Health and Social Media's Impact on Youth

Sonam Warned Family Before Marrying Raja, Then Plotted His Murder

Meta Youth Addiction Trial Could Reshape Instagram and Facebook

US Increases Evacuation Flights and Warns Americans Abroad Amid Iran Retaliation Fears

"Express Train Collision in Tamil Nadu: Passenger Coaches Catch Fire"

Israel Lebanon strikes deepen Iran-US tensions over Hormuz

Nationwide Healthcare Strike: Doctors Protest Over Kolkata Doctor's Rape-Murder with 24-Hour Walkout

Popular Cities