Let’s Encrypt

E131670

certificate authority nonprofit organization project public key infrastructure service

Let’s Encrypt is a free, automated, and open certificate authority that provides TLS/SSL certificates to enable secure HTTPS connections for websites worldwide.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (3)

Label	Occurrences
Let’s Encrypt canonical	5
Let’s Encrypt (co-founding support)	1
https://letsencrypt.org/	1

How this entity was disambiguated

This entity first appeared as the object of triple T1159304 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Let’s Encrypt
Context triple: [Electronic Frontier Foundation, notableWork, Let’s Encrypt]

A. VeriSign
VeriSign is an American technology company best known for operating key internet infrastructure, including managing the .com and .net top-level domains and providing critical DNS and security services.
B. Cloudflare
Cloudflare is a web infrastructure and security company best known for its global content delivery network (CDN), DDoS protection, and DNS services that help improve the performance and security of websites and internet applications.
C. Mozilla Foundation
The Mozilla Foundation is a nonprofit organization best known for promoting an open and accessible internet and stewarding projects like the Firefox web browser and the JavaScript language’s early development.
D. Comodo Dragon
Comodo Dragon is a Chromium-based web browser developed by Comodo that emphasizes enhanced security and privacy features compared to standard browsers.
E. World Wide Web Foundation
The World Wide Web Foundation is a nonprofit organization dedicated to advancing an open, accessible, and rights-based web for everyone worldwide.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Let’s Encrypt
Target entity description: Let’s Encrypt is a free, automated, and open certificate authority that provides TLS/SSL certificates to enable secure HTTPS connections for websites worldwide.

A. VeriSign
VeriSign is an American technology company best known for operating key internet infrastructure, including managing the .com and .net top-level domains and providing critical DNS and security services.
B. Cloudflare
Cloudflare is a web infrastructure and security company best known for its global content delivery network (CDN), DDoS protection, and DNS services that help improve the performance and security of websites and internet applications.
C. Mozilla Foundation
The Mozilla Foundation is a nonprofit organization best known for promoting an open and accessible internet and stewarding projects like the Firefox web browser and the JavaScript language’s early development.
D. Comodo Dragon
Comodo Dragon is a Chromium-based web browser developed by Comodo that emphasizes enhanced security and privacy features compared to standard browsers.
E. World Wide Web Foundation
The World Wide Web Foundation is a nonprofit organization dedicated to advancing an open, accessible, and rights-based web for everyone worldwide.
F. None of above. chosen

Statements (53)

Predicate	Object
instanceOf	certificate authority ⓘ nonprofit organization project ⓘ public key infrastructure service ⓘ
abbreviation	ISRG ⓘ
ACMEVersion	ACME v2 ⓘ
automationProtocol	ACME ⓘ
businessModel	nonprofit ⓘ
certificateType	Domain Validation certificate ⓘ
country	United States of America ⓘ surface form: United States
designPrinciple	privacy ⓘ security ⓘ transparency ⓘ
doesNotOffer	Extended Validation certificates ⓘ Organization Validation certificates ⓘ
focus	automation of certificate management ⓘ
fullName	Let’s Encrypt self-link ⓘ
goal	encrypt the entire web ⓘ improve privacy and security on the Internet ⓘ make HTTPS ubiquitous ⓘ
hasRootCertificate	ISRG Root X1 ⓘ ISRG Root X2 ⓘ
headquartersLocation	San Francisco ⓘ surface form: San Francisco, California, United States
inception	2014 ⓘ
licensePolicy	open and transparent ⓘ
maintains	ACME protocol reference implementation ⓘ
notableClientSoftware	Certbot ⓘ
offers	free TLS certificates ⓘ
operatedBy	Internet Security Research Group ⓘ
previouslyCrossSignedBy	DST Root CA X3 ⓘ
pricing	free of charge ⓘ
primaryService	issuance of X.509 digital certificates ⓘ
provides	OCSP responses ⓘ automated certificate issuance ⓘ automated certificate renewal ⓘ certificate revocation ⓘ certificate transparency logs ⓘ
publicLaunchDate	2015-12-03 ⓘ
scope	worldwide ⓘ
serviceType	SSL certificate provider ⓘ TLS certificate provider ⓘ certificate authority ⓘ
status	active ⓘ
supportModel	sponsorships and donations ⓘ
supportsKeyType	ECDSA ⓘ RSA ⓘ
supportsProtocol	HTTPS ⓘ SSL ⓘ TLS ⓘ
supportsValidation	domain control validation ⓘ
targetUser	hosting providers ⓘ system administrators ⓘ website operators ⓘ
website	Let’s Encrypt self-linksurface differs ⓘ surface form: https://letsencrypt.org/

How these facts were elicited

Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

Electronic Frontier Foundation → notableWork → Let’s Encrypt ⓘ

Linux Foundation → supportsProject → Let’s Encrypt ⓘ

EFF → hasCampaign → Let’s Encrypt ⓘ

this entity surface form: Let’s Encrypt (co-founding support)

HTTPS Everywhere → relatedTo → Let’s Encrypt ⓘ

Let’s Encrypt → fullName → Let’s Encrypt self-link ⓘ

Let’s Encrypt → website → Let’s Encrypt self-linksurface differs ⓘ

this entity surface form: https://letsencrypt.org/

LF → supportsProject → Let’s Encrypt ⓘ

All labels observed (3)

How this entity was disambiguated Show

Statements (53)

How these facts were elicited Show

Referenced by (7)

How this entity was disambiguated

How these facts were elicited