4network.com

Uptime & Server Information

Whois RDAP DNS Records Certificate Uptime Diagnostics History Hide Contact Info

Current Status

Status

Active

Server Type

nginx/1.25.1

Page Title

4NETWORK

Meta Description

We connect the leading C-Levels across the Americas, providing updates and networking opportunities through exclusive events and content channels, with a special focus on technology. We conduct studies and research to identify IT trends and innovative digital solutions.

Meta Keywords

It4cio, 4Network, CIO, CSO, CISO, C-Levels, Networking, Relacionamento, Líderes de TI, Pesquisa de Tecnologia, Tendências Tecnológicas, Pesquisa de Tendência em TI, Estudos de TI, Evento de Tecnologia da Informação, Eventos para CIOs, Eventos para CSOs, Soluções Tecnológicas, Inovação em TI, Network CIOs, Premiação de CIO, Premiação de CSO, Prêmio Case de Sucesso, Prêmio Notabile, Prêmio Empresa Destaque, Prêmio CIO Destaque, Prêmio Pico da Neblina, Programa Fraterno, Exclusive Lounge, Eureka, Calendário de Eventos Tecnologia da Informação, Nobalile by 4Network, Relación, Relaciones, Investigación de Tecnología, Investigación de Tendencias en TI, Evento de Tecnología de la Información, Innovación en TI, Relaciones entre CIOs, Premiación de CIO, Premio Caso de Éxito, Premio Empresa Destacada, Premio CIO Destacado, Relationship, IT Leaders, Technology Research, Technological Trends, IT Trends Research, IT Studies, Information Technology Event, Events for IT Leaders, Events for C-Levels, Technological Solutions, Relationship among CIOs, CIO Awards, CSO Awards, Success Case Award, Notabile Award, Outstanding Company Award, Outstanding CIO Award, Pico da Neblina Award, Information Technology Events Calendar, 4CIO Paraná, 4CIO Ceará, 4CIO Rio de Janeiro, 4CIO Minas Gerais, 4CIO Rio Grande do Sul, 4CIO Goiás, 4CIO Estados Unidos da América, 4CIO Bahia, 4CIO Pernambuco, CIO Brasil, CIO Brasil GOV, 4CSO Brasil, 4CIO Triângulo Mineiro, 4CIO PR, 4CIO Ribeirão Preto, 4CIO CE, 4CIO RJ, 4CIO MG, 4CIO Chile, 4CIO Argentina, 4CIO Florianópolis, 4CIO Joinville, 4CIO Campinas, 4CIO Private Sectors, 4CIO Public Sectors, 4CIO São José dos Campos, 4CIO RS, 4CIO GO, 4CIO USA, 4CIO BA, 4CIO PE, 4CIO Sul, 4Network Award 2024, 4CIO Bogotá, 4CIO Perú, 4CIO Medellín, 4CIO México, 4CIO México GOB, 4CIO Guadalajara, 4CIO Monterrey, 4CIO Puebla, 4CIO Mcio, 4CIO Interest Signature, Líder de TI, Eventos para CIO, Eventos para CSO, Premios CIO, Conectar, Connect, Tecnologia, Technology, Tendencias de TI, IT Trends, Soluciones de tecnología, Technology Solutions, Canais de conteúdo, Canales de contenido, Content Channels

Last Checked

just now

Last Status Change

Came back up — 6 months ago (3/11/2026)

Last Downtime

First seen down 8 months ago (12/24/2025), back up 6 months ago

Observed Changes

Date	Status	Server
7/26/2026, 7:39:00 AM	Active	nginx/1.25.1
3/11/2026, 1:23:39 PM	Active	nginx/1.25.1
2/18/2026, 2:37:43 AM	Inactive	Unknown
12/24/2025, 2:00:10 AM	Inactive	Unknown
8/30/2025, 5:50:55 PM	Active	nginx/1.25.1
8/4/2025, 3:41:37 AM	Active	nginx/1.25.1
5/29/2025, 9:55:15 AM	Active	nginx/1.25.1
1/21/2025, 1:24:55 PM	Active	nginx/1.25.1
1/6/2025, 12:39:15 AM	Active	nginx/1.25.1

Don't just check uptime once — watch it 24/7

This is a one-time check. Turn on monitoring and we'll watch the domains that matter to you continuously, notifying you the moment anything moves across all three signals:

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

Monitor uptime free

Free for your first domain: uptime, DNS, and certificate together. No credit card.

About Website Uptime Monitoring

Use the Who.is uptime information to track the availability and server information of websites. This helps track:

Website availability and response status
Server software and configuration
Meta information including titles and descriptions
Historical uptime patterns

This information is valuable for website owners, system administrators, and anyone interested in monitoring website reliability and performance.

What this page reports

Last status change: When we last saw a site switch between reachable and unreachable
Last downtime: When a site was most recently seen down, and whether it has come back
Server and meta information: The server software, page title and meta tags we last observed

We check a domain at most once a day and record an observation only when something changes, so these are the times a change was seen rather than the exact moment it happened. For continuous, minute-by-minute checks with alerting, use website monitoring.

Disclaimer: Who.is is not affiliated with, endorsed by, or connected to any of the domains displayed on this page. We provide this information as a public service for informational purposes only.