letsencrypt.org

Website review letsencrypt.org

Let's Encrypt

 Generated on March 03 2026 22:04 PM

Old data? UPDATE !

The score is 66/100

SEO Content

Title

Let's Encrypt

Length : 13

Perfect, your title contains between 10 and 70 characters.

Description

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 2025 Annual Report.

Length : 211

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Keywords

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Og Meta Properties

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Property Content
image https://letsencrypt.org/images/LetsEncrypt-SocialShare.png
type website
title Let's Encrypt
description 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 2025 Annual Report.
url https://letsencrypt.org/

Headings

H1 H2 H3 H4 H5 H6
2 7 9 1 0 0
  • [H1] Encryption for Everybody
  • [H1] Getting started
  • [H2] A nonprofit providing free TLS certificates to more than 700M700M websites.
  • [H2] Explore our work to improve security and privacy
  • [H2] From our blog
  • [H2] Global impact made possible by generosity
  • [H2] Let's Encrypt Growth
  • [H2] More ways we're improving security and privacy
  • [H2] Major Sponsors and Funders
  • [H3] Shorter Certificate Lifetimes and Rate Limits
  • [H3] DNS-PERSIST-01: A New Model for DNS-based Challenge Validation
  • [H3] On the Importance of "Hello" and "Thanks"
  • [H3] Support Encryption for Everybody
  • [H3] Leading Through Sponsorship
  • [H3] Diamond Level
  • [H3] Platinum Level
  • [H3] Gold Level
  • [H3] Silver Level
  • [H4] Subscribe for email updates about Let's Encrypt and other ISRG projects

Images

We found 92 images on this web page.

5 alt attributes are empty or missing. Add alternative text so that search engines can better understand the content of your images.

Text/HTML Ratio

Ratio : 30%

Ideal! This page's ratio of text to HTML code is between 25 and 70 percent.

Flash

Perfect, no Flash content has been detected on this page.

Iframe

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URL Rewrite

Good. Your links looks friendly!

Underscores in the URLs

Perfect! No underscores detected in your URLs.

In-page links

We found a total of 27 links including 0 link(s) to files

Anchor Type Juice
Skip navigation links Internal Passing Juice
Documentation Internal Passing Juice
Get Help Internal Passing Juice
Blog Internal Passing Juice
Become a Sponsor External Passing Juice
Current Sponsors & Funders External Passing Juice
Get Involved Internal Passing Juice
Donate Internal Passing Juice
Let's Encrypt Internal Passing Juice
Frequently Asked Questions (FAQ) Internal Passing Juice
Policy and Legal Repository Internal Passing Juice
Service Status External Passing Juice
Statistics Internal Passing Juice
Contact Internal Passing Juice
Careers External Passing Juice
Annual reports External Passing Juice
Internet Security Research Group (ISRG) External Passing Juice
Get Started Internal Passing Juice
Sponsor Internal Passing Juice
Read the Annual Report → External Passing Juice
See all our blog posts Internal Passing Juice
Read Documentation → Internal Passing Juice
Browse ACME Clients → Internal Passing Juice
Donate Now Internal Passing Juice
More stats Internal Passing Juice
Internet Security Research Group (ISRG) External Passing Juice
Internet Security Research Group External Passing Juice

SEO Keywords

Keywords Cloud

encrypt internet get more donate read certificate security free research

Keywords Consistency

Keyword Content Title Keywords Description Headings
encrypt 14
internet 10
more 8
security 7
read 6

Usability

Url

Domain : letsencrypt.org

Length : 15

Favicon

Great, your website has a favicon.

Printability

We could not find a Print-Friendly CSS.

Language

Good. Your declared language is en.

Dublin Core

This page does not take advantage of Dublin Core.

Document

Doctype

HTML 5

Encoding

Perfect. Your declared charset is UTF-8.

W3C Validity

Errors : 0

Warnings : 0

Email Privacy

Great no email address has been found in plain text!

Deprecated HTML

Great! We haven't found deprecated HTML tags in your HTML.

Speed Tips

Excellent, your website doesn't use nested tables.
Perfect. No inline css has been found in HTML tags!
Great, your website has few CSS files.
Perfect, your website has few JavaScript files.
Perfect, your website takes advantage of gzip.

Mobile

Mobile Optimization

Apple Icon
Meta Viewport Tag
Flash content

Optimization

XML Sitemap

Great, your website has an XML sitemap.

https://letsencrypt.org/sitemap.xml

Robots.txt

https://letsencrypt.org/robots.txt

Great, your website has a robots.txt file.

Analytics

Missing

We didn't detect an analytics tool installed on this website.

Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.

PageSpeed Insights


Device
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