EU sovereignNetwork & MonitoringHeadquarters: BE

Semonto: sovereignty score and 8 European alternatives

Semonto is a hosted service for monitoring websites and servers. It checks site availability around the clock, monitors TLS/SSL certificates, looks for broken links and mixed content, runs Lighthouse performance tests and tracks cron jobs, server health, domains and content. It also offers status pages, PDF reports on performance and uptime, integrations with WordPress, Drupal, Craft CMS, Slack and Teams among others, and apps for Android and iOS. Nothing needs to be installed; you sign in through the web.

Semonto is run by Coding Mammoth BV, with a registered address in Antwerp, Belgium. Its sub-processor list (last updated December 2023) names hosting providers such as DigitalOcean (US and EU), Linode (US) and Netlify (US), and further services including Google Workspace, Mailchimp and Sentry in the United States. Processing outside the EU is therefore possible, so ask which components run where. The privacy policy does not name a data-centre location. Semonto is not open source, and self-hosting is not possible.

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Sovereignty score

71 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-2100
Headquartered in the EU: European law applies
Data residency SOV-3100
EU-only hosting
Cryptographic key sovereignty SOV-360
Key management with a European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-655
Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked September 8, 2026

Headquarters	BE (EU)Verified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	EUVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Compliance documents	1 published, see belowVendor-stated
Hosting signal	AMAZON-02 - Amazon.com, Inc., US (US)Technically measured
Category	Network & Monitoring
Type	Product
Website	semonto.com ↗

The hosting signal shows the network that serves the vendor's website, often a CDN, and not necessarily where the service or your data is hosted. How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Semonto

The European alternatives to Semonto come from our knowledge base of over 6,800 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

41 European Network & Monitoring vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Semonto

Semonto is headquartered in BE and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so Semonto scores best on data residency.

Semonto is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Semonto together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Semonto?

It depends on your use case. Strong EU alternatives to Semonto include Centreon, Checkmk and collectd. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Semonto?

Yes. Open-source EU alternatives to Semonto include Centreon, Checkmk, collectd and Healthchecks.io. These keep your data fully under your own control and let you self-host if you want to.

Is Semonto GDPR-compliant and where is the data hosted?

Semonto is headquartered in BE (EU) and hosts data in EU. That makes Semonto an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on September 8, 2026.

Sources

This record was checked via the vendor's website and legal notice when it was added on September 8, 2026. Source links have been recorded per record since 20 September 2026.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

Data Processing Agreement (DPA): semonto.com/privacy

Provenance of the links above:Vendor-stated

Links checked on September 22, 2026.

Digital sovereignty in Network & Monitoring

Network & Monitoring: Network monitoring, infrastructure monitoring, log management and observability. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

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