Verdict
letsencrypt.org appears legitimate.
Our checks found nothing pointing to fraud. Ordinary care still applies when you pay or sign in.
| What this site appears to be | Official Let's Encrypt site: a nonprofit CA providing free automated TLS certificates, documentation, ACME client guidance, community support, and donation/sponsorship options. Legal address and organizational info present. |
|---|
Evidence status and limitations
Evidence completeness: UNKNOWN
- The real-world operator identity was not independently verified.
- Module-level completeness metadata is unavailable for this legacy report.
At a glance
The checks that decide most of this verdict.
| Malware engines | None flagged itVirusTotal | Clear |
|---|---|---|
| Google Safe Browsing | Not listedGoogle | Clear |
| Abuse reports on the host | 0 reportsAbuseIPDB; shared hosting inflates this count | Noted |
| Domain age | 12 years oldRegistered history | Clear |
| Certificate | Encrypted connectionIssued by YE2 | Noted |
| Hosted by | AMAZON-02Server in US | Noted |
The page as captured
Key findings
- Automated classification: Not Scam.
- Domain age: more than 10 years (registration continuity).
- No flags from the reputation services TrustSniffer consulted at assessment time.
Full analysis
Overview
Let's Encrypt is an apparently established nonprofit Certificate Authority website presenting free, automated TLS certificates, ACME client guidance, technical documentation, community support, donation and sponsorship options, and organizational information for visitors seeking to improve Internet security and privacy.
Scam/Impersonation Risk
No contradictions were observed. The homepage and associated site content present a coherent nonprofit purpose, with no detected phishing, impersonation, malicious-content, or suspicious behavioral indicators. The site does not present a login form or sensitive transaction form, and external reputation checks recorded no malicious or suspicious detections. The real-world operator identity is not independently verified, so the legitimacy conclusion remains evidence-consistent rather than proven.
- Homepage: identifies the service as a nonprofit Certificate Authority and describes its public-interest security mission.
- Homepage and contact/legal navigation: provide consistent organizational and service context without conflicting entity names.
- Observed site behavior: two successful runs recorded no external posts, hidden forms, wallet activity, clipboard manipulation, or cloaking.
- Domain registration: Registered 2014-07-07 (~12.12 years old).
Regulatory Verification Notes
The legal and organizational pages identify the Internet Security Research Group and provide a legal address, annual-report material, policy resources, and contact information. The stated operating model is nonprofit, donation- and sponsorship-funded, rather than a commercial certificate-sales operation. No specific regulatory licence or registration number is presented on the reviewed pages; for this type of service, that is a disclosure and applicability point for independent confirmation, not evidence of impersonation or fraud. A reputable registrar and established page authority provide additional context supporting an apparently legitimate, mature online presence, while not independently proving the operator's identity.
- About and legal pages: identify the Internet Security Research Group and include organizational and legal-address information.
- Homepage and donation/sponsorship pages: describe the nonprofit funding model and public-facing organizational activities.
- Domain registration record: registrar is Cloudflare, Inc.
- Hosting and transport: served from AS16509 (AMAZON-02 - Amazon.com, Inc., US); TLS certificate issued by YE2 (DV), valid to 2026-10-04.
What to Verify Next
Before credential or payment interactions, an institution should independently confirm the stated organization through an authoritative corporate or nonprofit registry and determine whether any sector-specific authorization is applicable. Payment-facing activity should be limited to methods offering appropriate protection, with return, refund, donation, and dispute terms checked on the relevant official pages. Contact channels should be corroborated through an independent route rather than relying solely on a message or link received from an unverified source.
- About, legal, and policy pages: provide the primary materials for comparing the stated organization and governing terms against independent records.
- Donation and sponsorship pages: identify the pages requiring payment-destination and payment-protection review.
- Contact and help pages: provide the official-channel reference points for independent corroboration.
Summary Verdict
Available evidence is consistent with an established, apparently legitimate website and supports a high-trust, low-risk posture. No scam, phishing, impersonation, or identity-conflict indicators were observed, although the operator connection is not independently verified.
Infrastructure Integrity
The website is protected by Cloudflare CDN/WAF infrastructure, with all observed addresses associated with CDN edge delivery and no origin-server address exposed in the observed resolution. This provides a meaningful mitigation against direct origin exposure and common abuse patterns, but remains an infrastructure safeguard rather than proof of organizational legitimacy.
Closing Assessment
Ordinary use is proportionate to the assessed posture, subject to independent confirmation of organizational identity, applicable authorization, and payment protections before credentials or funds are submitted.
Written analysis generated 2026-08-17 by the TrustSniffer Analysis Engine from the evidence in this report.
What the analysis found
No rule findings contributed to this verdict.
Identity verification
| Status | LIKELY |
|---|---|
| Identity score | 73/100 |
| Identity verification confidence | 74% |
- Trusted social count=1
Identity verification measures whether the site can be independently connected to a real-world brand or person. It is separate from the classification confidence.
What TrustSniffer observed
First-party facts recorded during the assessment of letsencrypt.org.
- The request stayed on letsencrypt.org. It was not redirected to another domain. Clear
- Registration is published under Cloudflare, Inc.. Clear
- DNS for this domain is served by cloudflare.com, across 2 name servers. Noted
- The registration is paid up to 2027-07-07. Noted
- It is hosted on AMAZON-02, from a server in US. Noted
Domain intelligence
| Registrar | Cloudflare, Inc. |
|---|---|
| Hosting | AMAZON-02 - Amazon.com, Inc., US |
| Country | US |
| Server IP | 2a05:d014:58f:6200::258 |
| Name servers | owen.ns.cloudflare.com, vera.ns.cloudflare.com |
| SSL issuer | YE2 |
| SSL expiry | 2026-10-04 |
| Domain age | 12.12 years (continuous registration) |
| Domain expiry | 2027-07-07 |
| Archive first seen | Not available |
| Archive snapshots | Not available |
| Reputation | VirusTotal: 0 flagged | AbuseIPDB: 0 reports | Google Safe Browsing: 0 matches |
About this assessment
A trust score summarises the evidence TrustSniffer could collect about letsencrypt.org at assessment time. It is a starting point for your own judgement, not a guarantee: a high score means the signals were consistent with a legitimately operated site, a low or critical score means several risk patterns were present.
TrustSniffer assesses a website from the evidence it can collect at a point in time: domain registration and age, hosting and certificate, the content the site served, and third-party reputation feeds. A score is a summary of that evidence, not a guarantee and not a legal finding. There is no human rating and no user review in it. A site can change after it is assessed.