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Technology · Web Development

Sentry

sentry.io

Sentry is software for finding and fixing application errors and slow code. It starts with a free plan for one user.[1][2]

Sentry is a comprehensive, open-source platform for workflow productivity that specializes in aggregating errors from across the technology stack in real time. It provides developers and teams with powerful error tracking and performance monitoring capabilities. Sentry supports a wide range of programming languages and frameworks, allowing it to be integrated into various types of applications. Key features include real-time error alerts, detailed error reports with stack traces, release tracking, and performance monitoring. Sentry also offers tools for triaging and assigning issues, integrating with popular project management and communication tools. Its ability to provide context around errors, including affected users and the conditions under which errors occur, makes it an invaluable tool for maintaining application reliability and improving user experience.

Sentry belongs toIssue trackerscategory.

Free plan

Free for one user, with error monitoring and tracing[2]

Team plan

$26 a month when billed annually[2]

Users

Unlimited users on the Team plan[2]

Seer

The Seer AI debugging agent is a paid add-on[2]

233websites

use it — 9.1% of the 2,555 websites we scanned in the last 12 months

#1of 19

tools in its category seen in our scans (we recognize 81)

70public pages

on UptimeCard — open any of them to see how that site is doing

In short: a free plan for one developer, then paid plans by team size. Watch the extra event charges and the Seer subscription.[2]

10.63% of all websites we track run Sentry▼ 0.01 points since 20 Sep

Should you use Sentry?

The 10-second version, from the vendor’s own pages and what we see in our scans

Sentry fits if…

  • You are one developer on a small project[2]The free plan is for solo developers.
  • A team needs error tracing that runs across the stack[1][2]Team and Business plans add users and debugging features.

Look elsewhere if…

  • Several people need access on the free tier[2]The free plan is limited to one user.
  • You want a list of alerts and errors sent by a single vendor tool at a lower price[3]Bugsnag also sells plans by monthly events.
Events beyond the plan allowance are charged separately[2]
Seer is a separate subscription on top of the plan[2]

Products and plans

Sentry sells its core monitoring with paid add-ons under one name

Sentry

This page

Error monitoring and tracing, first built as an open-source project[4]

Seer

An AI debugging agent and code reviewer[1]

Sentry MCP

Fix production issues from an AI assistant[1]

Plans of Sentry· The Sentry plans as listed for the United States, billed monthly or annually[2]

Developer

Free/ month

For solo developers working on small projects

  • Limited to one user
  • Error monitoring and tracing included

Team

$26/ month

Everything to monitor your application as it scales

  • Unlimited users
  • Additional events are billed separately

Business

$80/ month

For teams that need more powerful debugging

  • Advanced quota management
  • SAML and SCIM sign-in support

The Enterprise plan is priced on request for organizations with advanced needs[2]

Support and help for Sentry

How the vendor says you can reach it, and the public help community

Enterprise support

Dedicated customer support and a technical account manager on Enterprise[2]

Stack Overflow

1,549 questions[5]

[sentry] questions

How Sentry sites protect themselves

Share of the 233 sites we scanned that run each protection

HSTS70% · 164 sites

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS

reCAPTCHA26% · 60 sites

reCAPTCHA is a free service from Google that helps protect websites from spam and abuse

Cloudflare Bot Management25% · 58 sites

Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots

Protections add up, they do not replace each other: a site can run all of them.

What sites use Sentry for

An estimate from UptimeCard's technology map of 56 public sites

Runs the whole site41 sites

accredible.com · amplitude.com · commercetools.com

Runs the marketing site9 sites

coralogix.com · imagekit.io · immuta.com

Hosts help, docs or support content3 sites

customerio.com · neo4j.io · simbase.com

Runs a shop or catalog3 sites

emailsecurity.app · lightspeedhq.com · scaleway.com

Rough guide, not a measurement: each description is written automatically from the site’s technology stack and the site has not confirmed it. A site is counted once, in the first group its description fits (shop, help and docs, blog, marketing site; otherwise the whole site). Descriptions that only guess (“likely”, “may”) are left out.

At a glance

UptimeCard's own scans and tests of 2,555 websites · refreshed weekly

How Sentry sites scoreout of 100 · hover or tap a score for details

50PerformanceLowaverage site: 5089AccessibilityGoodaverage site: 8993Best practicesGoodaverage site: 9392SEOGoodaverage site: 92

Page load time

Loads about as fast as the average site

Sentry sites
4.2 s
All sites
4.3 s

Most Sentry sites load in 2.9–6.1 s. Home page weight: 3.5 MB vs 3.3 MB for all sites. 62 public sites measured.

Where are they hosted?

Mostly Amazon Web Services and Cloudflare

  • Amazon Web Services41%
  • Cloudflare33%
  • Fastly6%
  • Google Cloud3%
  • Other17%
United States 59%Canada 27%Germany 1%

Who uses it?

Software as a Service (SaaS) sites use Sentry 2.0× more than average

Technology and Software66%
Software as a Service (SaaS)2.0× avg11%
Business Services9%
Educational Resources3%

Share of 70 classified public sites. “× average” compares with all 961 public sites.

Browser-security check

24% of graded sites pass

5of 21 score B or better

Rates each site’s own security settings, not Sentry. 21 public sites graded so far.

How Sentry sites are built

Closest partners. The number says how many times more often the tool runs on Sentry sites than on an average website. Hover a partner for its share of sites.

Wistia10×Qualified4×Emotion3×Next.js2×Node.js2×React2×

Stacks we see most. Tools that tend to run together with Sentry on the same websites. The percentage is the share of all 233 Sentry sites that run the whole stack.

10 stacks · swipe, drag or use the arrows
#1

Sentry + React + Next.js + Google Sign-in

5.6%13 of 233 sites
#2

Sentry + React + OneTrust + Wistia + Tailwind CSS

2.6%6 of 233 sites
#3

Sentry + React + OneTrust + AWS Certificate Manager + Emotion

2.1%5 of 233 sites
#4

Sentry + React + Tailwind CSS + Turbopack + Next.js App Router

2.1%5 of 233 sites
#5

Sentry + Wistia + Unpkg

3.4%8 of 233 sites
#6

Sentry + Wistia + AWS Certificate Manager

3%7 of 233 sites
#7

Sentry + Wistia + Marko

3%7 of 233 sites
#8

Sentry + Tailwind CSS + Marko

2.6%6 of 233 sites
#9

Sentry + OneTrust + Vue.js

2.6%6 of 233 sites
#10

Sentry + OneTrust + Google Cloud

2.1%5 of 233 sites

Usually installed alongside

The bigger the bubble, the more of the 233 Sentry sites also run the tool. Colour shows what the tool does. Hover or tap a bubble for details.

Google Tag Manager69%Google Analytics55%Facebook Pixel28%Linkedin Insight Tag22%OneTrust26%Microsoft Advertising24%DoubleClick Floodlight12%Qualified13%Cart Functionality11%
Tag managerAnalyticsCookie consentAdvertisingMarketingOnline store

Similar tools in its category

Issue trackers: 81 tools known, 19 seen in our scans

Atlassian Statuspage20 sitesAlternativeMedallia11 sitesAlternativeBugHerd5 sitesAlternativeHelp Scout4 sitesAlternativeGetFeedback4 sitesAlternativeElastic APM4 sitesAlternativeBugSnag3 sitesAlternativeInstana3 sitesAlternativeZendesk16 sitesUsed together

How websites combine Sentry with other tools

Relationships found on the websites that use it, from the same map status pages show.

Integrates with another 42Complements another tool 20Built on a platform 3Overlaps with another 3Needs another tool 1

Websites using Sentry

233 websites use Sentry: 9.1% of the 2,555 websites we scanned in the last 12 months. A selection is shown below.

Scores are out of 100: P Performance · A Accessibility · B Best practices · S SEO. Green 80+, yellow 65–79, orange 50–64, red below 50. The dot shows whether our last scan found the site failing (red) or not (green); Red, amber or blue: an active incident on the site's status page (outage, degraded, maintenance) or a failing scan; amber also means a certificate ending within 30 days. Hover the dot for details.

Who is behind Sentry

From its own pages and public records, with sources

Trademark held by

Functional Software, Inc.[4]

Offices in San Francisco and Vienna[4]

Questions about Sentry

Is there a free plan?
Yes. The Developer plan is free and limited to one user.[2]
Are paid plans billed monthly or yearly?
Both are offered. Annual billing is the default on the pricing page and is shown with a saving.[2]
How many websites use Sentry?
We found Sentry on 233 of the 2,555 websites we scanned in the last 12 months (9.1%). 70 of them have a public status page.
What is Sentry often used with?
Among the websites we scan, Sentry is often found alongside React (53.6% of its sites), Node.js (39.9% of its sites), Next.js (33.9% of its sites).
What are the alternatives to Sentry?
Other issue trackers tools we recognize include Atlassian Statuspage, Zendesk, Medallia, BugHerd.

Is your website built with Sentry?

UptimeCard checks it around the clock, tells you the minute it stops answering, and gives your visitors a status page.

Monitor my site freeCreate a status page