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IsDown.app VS mitmproxy

Compare IsDown.app VS mitmproxy and see what are their differences

IsDown.app

When a vendor goes down, does your team find out in seconds or after users start complaining? IsDown monitors 6,000+ official status pages and alerts your team within seconds across Slack, PagerDuty, Datadog, and more. 14-day free trial

Rating
0 reviews
Pricing
Paid Free trial $27 / Monthly (Starter)
Alternatives Is it good?
mitmproxy

mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
Recalert.us
Free recall lookup for U.S. businesses. Search CPSC, FSIS, NHTSA and FDA product recalls by product, brand, model or UPC in seconds. sponsored

Which is more popular?

Based on our record, mitmproxy seems to be a lot more popular than IsDown.app. While we know about 93 links to mitmproxy, we've tracked only 7 mentions of IsDown.app.

social mentions
7 vs 93
Website Monitoring popularity
100% vs 0%
alternatives listed
125 vs 160

Base details

Website, pricing, platforms and company facts side by side.

IsDown.app
mitmproxy
Website isdown.app mitmproxy.org
Pricing
Paid Free trial $27 / Monthly (Starter) Official pricing
Open source
Platforms
Web
—
Company Startup from Portugal · 2020 —
Listed in
Monitoring Tools Cloud Monitoring Notifications And Alerting Website Monitoring Status Pages Hosted Status Pages SRE DevOps Tools DevOps Services Developer Tools +7
Developer Tools Security Software Development Proxy +1

About IsDown.app and mitmproxy

In their own words, as submitted to SaaSHub.

IsDown.app
mitmproxy

IsDown was built out of frustration at 4 AM. Nuno Tomas, founder and on-call engineer, spent 30 minutes debugging an alert before realising the cloud provider had an outage posted on their status page, but nobody was watching it. That night, he decided there had to be a better way. Today, IsDown...

Read more about IsDown.app

No description of mitmproxy yet.

Features and specs

What each product offers, as listed by its team.

IsDown.app 21 features
mitmproxy 6 features
  • Status Dashboard
  • Multiple Team Boards
  • Slack App
  • Zapier Integration
  • Scheduled maintenances feed
  • Weekly Digest
  • Datadog Integration
  • Uptime Monitoring
  • Keyword Monitoring
  • SSL Monitoring
  • PagerDuty Integration
  • Custom Endpoint Monitoring
  • Public Status Pages
  • Private Status Pages
  • Early Outage Detection
  • SSO / SAML
  • Microsoft Teams Integration
  • Incident.io Integration
  • Historical Uptime Data
  • MCP Server
  • Multi-region Monitoring
  • Open Source
    mitmproxy is free and open source, allowing users to modify and contribute to the project. This ensures transparency and encourages community-driven improvements.
  • Interactive Interface
    It offers a powerful interactive console interface that lets users inspect and modify HTTP and HTTPS requests and responses in real-time.
  • Scripting Support
    mitmproxy supports Python scripting, which enables users to automate and customize their workflows easily.
  • Cross-Platform
    The tool is available for multiple operating systems, including Windows, macOS, and Linux, making it accessible to a wide range of users.
  • Extensive Documentation
    mitmproxy provides comprehensive documentation, tutorials, and community resources, which helps users get started and find solutions to issues quickly.
  • TLS Support
    It has built-in support for TLS/SSL, which allows for the interception and inspection of encrypted traffic.

Possible disadvantages

  • Learning Curve
    The tool has a steep learning curve, especially for users who are not familiar with networking concepts or Python scripting.
  • Resource Intensive
    Running mitmproxy can be resource-intensive, especially when dealing with high traffic volumes, which might affect system performance.
  • Limited GUI Options
    While mitmproxy offers a powerful console interface, the graphical user interface (GUI) options are somewhat limited compared to other tools.
  • Potential Legal and Ethical Issues
    Intercepting traffic with mitmproxy can raise legal and ethical concerns, especially if used without proper authorization or in violation of privacy laws.
  • Compatibility Issues
    There can be compatibility issues with some applications that implement advanced security measures, leading to difficulties in intercepting and modifying traffic.

Analysis

An editorial look at what each product does well and who it suits.

IsDown.app
mitmproxy

No analysis of IsDown.app yet.

Overall verdict

  • Yes, mitmproxy is generally considered a good tool, especially for developers, testers, and security professionals who need to monitor and manipulate network traffic. Its open-source nature and the community around it ensure continuous improvement and support.

Why this product is good

  • Mitmproxy is a powerful, interactive, open-source HTTP/HTTPS proxy that is well-regarded for its robust feature set, including the ability to inspect, modify, and replay both HTTP and WebSocket traffic. It is particularly appreciated for its command-line interface, scriptability using Python, and detailed traffic inspection capabilities. It is a valuable tool for debugging, testing, and security analysis.

Recommended for

    Mitmproxy is recommended for software developers, QA testers, network administrators, and security researchers who require advanced tools for inspecting and debugging HTTP/HTTPS traffic. It is also beneficial for students and educators in computer science and cybersecurity disciplines who are learning about network protocols.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
IsDown.app
mitmproxy
100% 100%
Website Monitoring
0% 0%
0% 0%
Developer Tools
100% 100%
100% 100%
Monitoring Tools
0% 0%
0% 0%
Proxy
100% 100%

Questions & Answers

As answered by people managing IsDown.app and mitmproxy.

What makes your product unique?

IsDown.app's answer

IsDown monitors official vendor status pages directly, not just crowdsourced reports. This means alerts include real incident context: what broke, which components are affected, and real-time resolution status. Not just "something is down." Combined with crowdsourced early detection signals, IsDown can catch outages before vendors acknowledge them. In January 2026 alone, IsDown detected 101 incidents that vendors never officially reported. Every team monitoring cloud services already has uptime tools that ping their own URLs. IsDown tells you what is happening with the third-party services your stack depends on, before your users feel it.

Why should a person choose your product over its competitors?

IsDown.app's answer

Three reasons:

  1. Coverage: 6,000+ services monitored. If your vendor has a status page, IsDown monitors it.
  2. Speed and context: Alerts go out within seconds of an incident, with full context including affected components, official vendor description, and real-time updates. Not just a notification that something is wrong.
  3. IsDown does not replace your existing tools, it completes them. UptimeRobot and Pingdom tell you your own services are down. IsDown tells you which of your third-party vendors caused it, and exactly what is happening on their end. Setup takes 5 minutes. No engineering required.

How would you describe the primary audience of your product?

IsDown.app's answer

IsDown is built for IT managers, DevOps engineers, and SREs at companies that rely on multiple cloud and SaaS services, which means any team running on cloud infrastructure. The core audiences are DevOps and SRE teams who are on-call and need to know instantly when a third-party service causes an incident; IT managers responsible for vendor oversight and SLA compliance; MSPs and agencies managing cloud infrastructure for multiple clients; and engineering teams who want to stop wasting time debugging problems that turn out to be vendor outages. Customers span SaaS companies, schools, DevOps agencies, and enterprise IT teams across industries.

What's the story behind your product?

IsDown.app's answer

IsDown was built out of frustration at 4 AM. Nuno Tomas, the founder, was on-call when a PagerDuty alert woke him up. After 30 minutes of debugging, he realised the problem was not his code. It was the cloud provider. They had posted an outage on their status page, but nobody on the team was watching it. That night, he decided there had to be a better way. He built the first version of IsDown so his team would never be the last to know about a vendor outage. Founded in 2020, IsDown has since grown to monitor 6,000+ services, perform over 1 billion status checks, detect 520,000+ outages, and send 5.2 million+ notifications. The same problem Nuno solved for his team that night is now solved for IT, DevOps, and engineering teams around the world.

Who are some of the biggest customers of your product?

IsDown.app's answer

IsDown is used by IT, DevOps, and engineering teams across SaaS companies, MSPs, DevOps agencies, schools, and enterprise IT departments.

Which are the primary technologies used for building your product?

IsDown.app's answer

IsDown is a web-based SaaS application. The core product runs on modern cloud infrastructure with multi-region monitoring across US, EU, and Asia to ensure reliable status checks and fast alert delivery worldwide. IsDown integrates directly with Slack, PagerDuty, Datadog, Microsoft Teams, Incident.io, FireHydrant, Grafana, Rootly, Zendesk, and more, connecting alerts to wherever your team already works. For teams using AI assistants, IsDown offers an MCP (Model Context Protocol) Server that allows querying IsDown data directly from AI tools like Claude or ChatGPT.

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

IsDown.app no reviews yet
mitmproxy no reviews yet

We have no reviews of IsDown.app yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

IsDown.app 7 mentions
mitmproxy 93 mentions
  • I Put an LLM Gateway in Front of My App: What Broke First
    Automatic failover across multiple AI providers is one of the most compelling arguments for placing an LLM gateway in front of an application. Provider incidents are frequent occurrences. According to incident tracking data compiled by... - Source: dev.to / 5 days ago
  • Top 10 Statuspage.io Alternatives in 2025
    A specialized status page aggregator designed for internal team communication and vendor dependency monitoring. Unlike public status page creators, IsDown monitors 4,500+ third-party vendor status pages (AWS, Azure, GitHub, Stripe, etc.)... - Source: dev.to / 10 months ago
  • Build or Buy Your Third-Party Monitoring System: Decision Guide
    Consider your growth trajectory. Will you be monitoring 10 services or 1000? Commercial solutions like IsDown are designed to scale effortlessly, while custom solutions often require significant rework as requirements grow. - Source: dev.to / about 1 year ago

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  • How to audit what your IDE extension actually sends to the cloud
    Mitmproxy is the gold standard here. It's free, open source, and Python-scriptable. - Source: dev.to / 5 months ago
  • How to Debug Encrypted API Traffic When Console.log Isn't Enough
    A Man-in-the-Middle (MITM) proxy sits between your client and the destination server, intercepting and decrypting TLS traffic so you can inspect it in plain text. Before you panic about the name — this is a standard, legitimate debugging... - Source: dev.to / 6 months ago
  • Overcoming Geo-Blocked Feature Testing with Zero-Budget DevOps Strategies
    Leverage open-source proxy tools like mitmproxy or tinyproxy, which allow you to intercept and modify HTTP requests and responses in real-time. By configuring these, you can simulate different geo conditions:. - Source: dev.to / 9 months ago

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Alternatives to IsDown.app and mitmproxy

When comparing IsDown.app and mitmproxy, you can also consider the following products.

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