Rollbar on new websites

1. Rollbar appeared on about 1,600 new sites in the last 30 days.^[1]
2. It is the third most common error tracker on new sites. Sentry appears on about 70 times as many.
3. Six in ten new Rollbar sites also use AWS CloudFront.
4. It is unusually common on .fr domains: 7.9% of the domains running it, against 1.9% of domains across new sites.

The line is the 7-day average share of new sites that use Rollbar, since 10 September.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Sentry	4.7%	96.7%
2	–	Datadog	0.1%	2.0%
3	–	Rollbar	0.1%	1.3%
4	–	Bugsnag	<0.1%	0.9%
5	▼1	LogRocket	<0.1%	0.2%

All-time shares across the new sites we track: of all of them, and of the sites using any Error Tracking tool. The most common alternatives to Rollbar on new websites are Datadog and Bugsnag. All 34 in Error Tracking

Tool	Sites with both	vs all new sites	Bar
Systeme.io	979	1410x
AWS CloudFront	2,371	56x
Stripe	1,048	27x
Sentry	2,187	12x
Facebook Pixel	1,091	8.2x

Tools that turn up far more often on Rollbar sites than on new sites in general, and how many times as common each one is there.

194 of the 3,911 sites using Rollbar are product launches we list individually. The other 3,717 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

Site	Found	Also detected
Understand why you feel the way you do | Understand My Inner Life understandmyinnerlife.com · Health · Denmark	Oct 19
Ritmoso — App de hábitos gratuito: hábitos, tarefas e metas ritmoso.app · Productivity · Brazil	Oct 19
Apprendre le thaï spécial francophones | Aarôme Thaï xn--aarmethai-i7a.com	Oct 19
Little Big Whys | Question and Answer Books for Curious Kids littlebigwhys.com · Italy	Oct 19
Not Ready Yet – A free guided journal | Surreal Sunday surrealsunday.com · Social	Oct 18
Signal Oversight signaloversight.com · Finance	Oct 18
Hermélys — communication pour mandataires immobiliers, région lyonnaise hermelys.com · France	Oct 18
Eurkeys | Seller-Financed Homes for Buyers and Owners eurkeys.com	Oct 16
The Christmas Load Check | Easier with Bee easierwithbee.co.uk · Productivity · United Kingdom	Oct 16
Macro Intelligence Scorecard | Biais macro chiffré, daté et structuré macrointelligencescorecard.com · Finance	Oct 15
Caring for Mom and Dad Kit | Shared Carry sharedcarry.com · Health	Oct 15
Prépa Concours Commun IEP 2027 | Objectif IEP objectifiep.fr · Education · France	Oct 15

Showing the most recent 12 of 194.

Watches, exports and the API give you all 3,911 sites using Rollbar, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.
3. Green hosting is the share whose web host The Green Web Foundation lists as running on green energy, among sites checked since 1 April 2026, against the same share for every new site we checked over that time. Data from The Green Web Foundation.