OK
https://letsencrypt.org/
Websites
Runtime: 315ms
On September 19, 2024, 09:39 PM UTC, https://letsencrypt.org/ was accessible when tested on AS2852 in Czechia.
Failures
HTTP Experiment
null
DNS Experiment
null
Control
null
DNS Queries
Resolver:
172.68.212.17
Query:
IN A letsencrypt.org
Engine:
system
Name
Class
TTL
Type
DATA
@
IN
A
3.72.140.173
@
IN
A
52.58.254.253
Query:
IN AAAA letsencrypt.org
Engine:
system
Name
Class
TTL
Type
DATA
@
IN
AAAA
2a05:d014:58f:6201::64
@
IN
AAAA
2a05:d014:58f:6202::64
TCP Connections
Connection to 2a05:d014:58f:6201::64:443 succeeded.
Connection to 2a05:d014:58f:6202::64:443 succeeded.
Connection to 3.72.140.173:443 succeeded.
Connection to 52.58.254.253:443 succeeded.
HTTP Requests
URL
GET https://letsencrypt.org/
Response Headers
Accept-Ranges:bytesAge:7466Cache-Control:public,max-age=0,must-revalidateCache-Status:"Netlify Edge"; hitContent-Length:53829Content-Security-Policy:default-src 'none'; font-src 'self'; style-src 'unsafe-inline' 'self'; script-src 'unsafe-eval' 'unsafe-inline' 'self' data: https://www.google-analytics.com https://www.googleadservices.com https://www.googletagmanager.com https://googleads.g.doubleclick.net https://donorbox.org https://js.stripe.com/v3/ https://sdks.shopifycdn.com https://www.paypal.com https://www.paypalobjects.com https://widget.thegivingblock.com https://*.shift4.com ; img-src 'self' data: blob: https://www.google-analytics.com https://*.paypal.com https://www.paypalobjects.com https://ak2s.abmr.net https://ak1s.abmr.net https://www.google.com https://cdn.shopify.com https://v.shopify.com ; frame-src https://donorbox.org https://www.youtube.com https://www.youtube-nocookie.com https://bid.g.doubleclick.net https://js.stripe.com/v3/ https://js.stripe.com/v2/ https://www.paypal.com https://outreach.abetterinternet.org https://app.netlify.com https://widget.thegivingblock.com/ ; connect-src 'self' https://d4twhgtvn0ff5.cloudfront.net/ https://letsencrypt-merch.myshopify.com https://monorail-edge.shopifysvc.com https://www.paypal.com https://www.google-analytics.com ;Content-Type:text/html; charset=UTF-8Date:Thu, 19 Sep 2024 21:39:01 GMTEtag:"7a077c1711b3f2f8fe20945af1edf1b8-ssl"Permissions-Policy:geolocation=(), midi=(), notifications=(), push=(), sync-xhr=(), microphone=(), camera=(), magnetometer=(), gyroscope=(), speaker=(self), vibrate=(), fullscreen=(self), interest-cohort=()Referrer-Policy:no-referrerServer:NetlifyStrict-Transport-Security:max-age=31536000X-Content-Type-Options:nosniffX-Frame-Options:DENYX-Nf-Request-Id:01J863JSKWXRB4MJF8D7T40VC4X-Xss-Protection:1; mode=block
Response Body
<!DOCTYPE html> <html dir="ltr" lang="en-US"> <head> <meta name="generator" content="Hugo 0.89.1" /> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width initial-scale=1" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <title> Let's Encrypt </title> <meta name="description" content="Let's Encrypt is a free, automated, and open certificate authority brought to you by the nonprofit Internet Security Research Group (ISRG). Read all about our nonprofit work this year in our 2023 Annual Report. " /> <meta name="twitter:card" content="summary" /> <meta name="twitter:site" content="@letsencrypt" /> <meta name="twitter:title" content="Let's Encrypt" /> <meta name="twitter:url" content="https://letsencrypt.org/" /> <meta name="twitter:description" content="Let's Encrypt is a free, automated, and open certificate authority brought to you by the nonprofit Internet Security Research Group (ISRG). 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</header> <div id="main-content"></div> <div class="hero tall"> <div class="container"> <h1>A nonprofit Certificate Authority providing TLS certificates to <span>450 million</span> websites.</h1> <h2>Read all about our nonprofit work this year in our <a href='https://abetterinternet.org/annual-reports/'>2023 Annual Report</a>.</h2> <div class="buttons flex"> <div class="flex1 tar mr1m"> <a class="dib" href="/getting-started/">Get Started</a> </div> <div class="flex1 tal ml1m"> <a class="dib" href="https://www.abetterinternet.org/sponsor/">Sponsor</a> </div> </div> </div> </div> <div class="page-content"> <div class="wrapper"> <div class=""> <div class="pure-g home"> <div class="pure-u-1 pure-u-md-1-2"> <div class="grid-container"> <h2 class="through-line"><a href="/blog/">From our blog</a></h2> <ul class="post-list"> <li> <span class="post-meta">Jul 23, 2024</span> <h2> <a class='post-link' href='/2024/07/23/replacing-ocsp-with-crls' hreflang='en'>Intent to End OCSP Service</a> </h2> Moving to a more privacy-respecting and efficient method of checking certificate revocation. <p class="post-excerpt"> <a href='/2024/07/23/replacing-ocsp-with-crls' hreflang='en'>Read more</a> </p> </li> <li> <span class="post-meta">Jun 24, 2024</span> <h2> <a class='post-link' href='/2024/06/24/ntpd-rs-deployment' hreflang='en'>More Memory Safety for Let’s Encrypt: Deploying ntpd-rs</a> </h2> NTP is critical to how TLS works, and now it’s memory safe at Let’s Encrypt. <p class="post-excerpt"> <a href='/2024/06/24/ntpd-rs-deployment' hreflang='en'>Read more</a> </p> </li> <li> <span class="post-meta">May 30, 2024</span> <h2> <a class='post-link' href='/2024/05/30/princeton-partnership' hreflang='en'>Let’s Encrypt Continues Partnership with Princeton to Bolster Internet Security</a> </h2> Increasing defense against BGP attacks thanks to support from the Open Technology Fund. <p class="post-excerpt"> <a href='/2024/05/30/princeton-partnership' hreflang='en'>Read more</a> </p> </li> <li> <span class="post-meta">May 1, 2024</span> <h2> <a class='post-link' href='/2024/05/01/ari-in-tailscale' hreflang='en'>Takeaways from Tailscale’s Adoption of ARI</a> </h2> ACME Renewal Info (ARI) enables easy and automated cert revocation and replacement. <p class="post-excerpt"> <a href='/2024/05/01/ari-in-tailscale' hreflang='en'>Read more</a> </p> </li> <li> <span class="post-meta">Apr 25, 2024</span> <h2> <a class='post-link' href='/2024/04/25/guide-to-integrating-ari-into-existing-acme-clients' hreflang='en'>An Engineer’s Guide to Integrating ARI into Existing ACME Clients</a> </h2> Six steps developers can take to integrate ARI into an existing ACME client. <p class="post-excerpt"> <a href='/2024/04/25/guide-to-integrating-ari-into-existing-acme-clients' hreflang='en'>Read more</a> </p> </li> </ul> <p class="rss-subscribe"> <i class="fas fa-rss-square" aria-hidden="true"></i> Subscribe <a href="/feed.xml">via RSS</a> </p> </div> </div> <div class="pure-u-1 pure-u-md-1-2"> <div 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Resolver
Resolver ASN
AS13335
Resolver IP
172.68.212.17
Resolver Network Name
Cloudflare, Inc.
Report ID
20240919T213746Z_webconnectivity_CZ_2852_n1_2zNqoZCiste8XYYr
Platform
linux
Software Name
iThena-ooniprobe (1.0.0)
Measurement Engine
ooniprobe-engine (3.10.0-beta.3)