What’s the 411 on 404 messages: Internet error messages explained | The Mozilla Blog (2024)

Skip to content

What’s the 411 on 404 messages: Internet error messages explained | The Mozilla Blog (1)

What’s the 411 on 404 messages: Internet error messages explained | The Mozilla Blog (2)

Search

Nothing’s worse than a broken website. Well, maybe an asteroid strike. Or a plague. So maybe a broken website isn’t the end of the world, but it’s still annoying. And it’s even more annoying not knowing what those weird error messages mean. That’s why we’ve decoded the most common HTTP error messages.

What’s the 411 on 404 messages: Internet error messages explained | The Mozilla Blog (6)

What is an HTTP error message?

When you click a link or type a web address into a browser, you’re asking a server somewhere to show you a website. If your browser can’t get to the site, it will display an error message. These messages either describe an error with your machine or an error with the web server you’re trying to reach. Typically they include a basic description, but those descriptions can be vague. Here are the most common HTTP error messages and what they mean:

  1. HTTP error 500 (internal server error)

The web server is having issues. It’s pretty vague, but this error message simply means the web server you’re trying to reach is experiencing an error. It could mean that the server’s configuration data is wrong or that it’s overwhelmed with requests. There’s really no way to tell exactly what the issue is, but the server is definitely down for the count.

  1. HTTP error 404 (not found)

Page not found. This common error message pops up when you’re trying to visit a website or page that isn’t there. Most sites have witty error pages (including us) to help users find what they’re looking for. Others contain cool easter eggs for users to discover.

  1. HTTP error 403 (forbidden)

You’ll see this message if you try to access a part of the site that’s off limits to the world wide web. That could include a database, back-end code, or anything else the server needs to function, but that you shouldn’t see.

  1. HTTP error 400 (bad request)

This error message pops up when your request to see a web page gets garbled in some way. It could be that you typed the address incorrectly, or that your internet connection is faulty.

  1. HTTP error 401 (unauthorized)

A 401 error is similar to a 403 error, but usually only pops up with a failed login in attempt.

This post is also available in: Français (French)

What’s the 411 on 404 messages: Internet error messages explained | The Mozilla Blog (2024)
Top Articles
How to Make Your Own Homemade Laundry Detergent
1Bill: App To Pay Bills - iPhone, Android | Reminders, Schedule Payments, Pay in Installments & More
$4,500,000 - 645 Matanzas CT, Fort Myers Beach, FL, 33931, William Raveis Real Estate, Mortgage, and Insurance
Fort Morgan Hometown Takeover Map
NYT Mini Crossword today: puzzle answers for Tuesday, September 17 | Digital Trends
Breaded Mushrooms
Prosper TX Visitors Guide - Dallas Fort Worth Guide
Terraria Enchanting
Obituary (Binghamton Press & Sun-Bulletin): Tully Area Historical Society
Achivr Visb Verizon
People Portal Loma Linda
Animal Eye Clinic Huntersville Nc
2016 Ford Fusion Belt Diagram
iOS 18 Hadir, Tapi Mana Fitur AI Apple?
Wilmot Science Training Program for Deaf High School Students Expands Across the U.S.
065106619
Abortion Bans Have Delayed Emergency Medical Care. In Georgia, Experts Say This Mother’s Death Was Preventable.
Kiddle Encyclopedia
Iu Spring Break 2024
Dover Nh Power Outage
Ge-Tracker Bond
Decosmo Industrial Auctions
Www.craigslist.com Savannah Ga
Optum Urgent Care - Nutley Photos
R. Kelly Net Worth 2024: The King Of R&B's Rise And Fall
Betaalbaar naar The Big Apple: 9 x tips voor New York City
Seeking Arrangements Boston
Wnem Tv5 Obituaries
Obituaries Milwaukee Journal Sentinel
Albert Einstein Sdn 2023
Wood Chipper Rental Menards
Cornedbeefapproved
Craigslist Northern Minnesota
Taktube Irani
Tire Pro Candler
Utexas Baseball Schedule 2023
Manuel Pihakis Obituary
Blackstone Launchpad Ucf
Pill 44615 Orange
How to Destroy Rule 34
Flashscore.com Live Football Scores Livescore
Telegram update adds quote formatting and new linking options
Scanning the Airwaves
Instafeet Login
Lyca Shop Near Me
Vision Source: Premier Network of Independent Optometrists
M Life Insider
Winta Zesu Net Worth
Oklahoma City Farm & Garden Craigslist
Aloha Kitchen Florence Menu
Kenwood M-918DAB-H Heim-Audio-Mikrosystem DAB, DAB+, FM 10 W Bluetooth von expert Technomarkt
Hughie Francis Foley – Marinermath
Latest Posts
Article information

Author: Tish Haag

Last Updated:

Views: 5886

Rating: 4.7 / 5 (67 voted)

Reviews: 82% of readers found this page helpful

Author information

Name: Tish Haag

Birthday: 1999-11-18

Address: 30256 Tara Expressway, Kutchburgh, VT 92892-0078

Phone: +4215847628708

Job: Internal Consulting Engineer

Hobby: Roller skating, Roller skating, Kayaking, Flying, Graffiti, Ghost hunting, scrapbook

Introduction: My name is Tish Haag, I am a excited, delightful, curious, beautiful, agreeable, enchanting, fancy person who loves writing and wants to share my knowledge and understanding with you.