Letsencrypt.org - SEO Checker

Overview of the SEO Check
Meta information
61% 
Page quality
89% 
Page structure
50% 
Link structure
67% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.03 s
File size
81.60 kB
Words
625
Media files
87
Number of links
57 internal / 94 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Let's Encrypt
The page title is too short. (115 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
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 2024 Annual Report.
The meta description is too long: 1285 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: United States of America
The following language is defined by HTML: en-us
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

NameValue
generatorHugo 0.130.0
viewportwidth=device-width, initial-scale=1
descriptionLet'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 2024 Annual Report.
langen-us
og:imagehttps://letsencrypt.org/images/LetsEncrypt-SocialShare.png
og:typewebsite
og:titleLet's Encrypt
og:descriptionLet'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 2024 Annual Report.
og:urlhttps://letsencrypt.org/
X-UA-CompatibleIE=edge
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 625 words. That's ok.
29.8% of the text are stop words.
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
10 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 19.19 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 13 tags for this page.
Image SEO
(Somewhat important)
5 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
/images/language-icon128px-black.pngNo alt attribute provided
/images/letsencrypt-logo-horizontal.svgLet's Encrypt
/images/le-logo-lockonly.svgNo alt attribute provided
/images/le-logo-lockonly.svgNo alt attribute provided
/images/le-logo-lockonly.svgNo alt attribute provided
/images/le-logo-lockonly.svgNo alt attribute provided
...mages/Prossimo Horizontal Full Color.svgProssimo logo
/images/Divvi-Up-Large-Full-Color-Logo.pngDivvi Up logo
/images/sponsors/small/chrome-logo.pngGoogle Chrome
/images/sponsors/small/aws-logo-2.pngAmazon Web Services
/images/sponsors/small/mozilla-logo.pngMozilla
/images/sponsors/small/cisco-logo.pngCisco
/images/sponsors/small/eff-logo.pngElectronic Frontier Foundation
/images/sponsors/small/ovh-logo.pngOVH
/images/sponsors/small/identrust-logo.pngIdenTrust
.../sponsors/small/ford-foundation-logo.pngFord Foundation
/images/sponsors/small/shopify-logo.pngShopify
/images/sponsors/small/ibm-logo.pngIBM
/images/sponsors/small/heroku-logo.pngHeroku
/images/sponsors/small/sap-logo.svgSAP
/images/sponsors/small/squarespace-logo.pngSquarespace
/images/sponsors/small/automattic-logo.pngAutomattic
/images/sponsors/small/akamai-logo.pngAkamai
/images/sponsors/small/cyon-logo.pngCyon
/images/sponsors/small/infomaniak-logo.pngInfomaniak
/images/sponsors/small/hostpoint-logo.pngHostPoint
/images/sponsors/small/siteground-logo.pngSiteGround
/images/sponsors/small/vultr-logo.pngVultr
...ges/sponsors/small/planethoster-logo.pngHébergement web
/images/sponsors/small/fastly-logo.pngFastly
/images/sponsors/small/3cx-logo.png3CX
/images/sponsors/small/jimdo-logo.pngJimdo
/images/sponsors/small/zendesk-logo.pngZendesk
/images/sponsors/small/netlify-logo.pngNetlify
/images/sponsors/small/hostpapa-logo.pngHostPapa
/images/sponsors/small/dnsimple-logo.pngdnsimple
...ges/sponsors/small/shiguredo-v2-logo.svgShiguredo
/images/sponsors/small/discourse-logo.pngDiscourse
...es/sponsors/small/driving-tests-logo.pngdriving-tests.org
/images/sponsors/small/sakura-logo.pngSakura Internet
/images/sponsors/small/duocircle-logo.pngDuoCircle
/images/sponsors/small/serverpilot-logo.pngServerPilot
...s/sponsors/small/domainnameshop-logo.pngDomainName.Shop
/images/sponsors/small/github-logo.pngGitHub
/images/sponsors/small/unraid-logo.pngLime Technology (Unraid)
/images/sponsors/small/keenetic-logo.pngKeenetic
/images/sponsors/small/haproxy-logo.pngHAProxy
/images/sponsors/small/mongodb-logo.pngMongoDB
/images/sponsors/small/livesport-logo.pngLivesport
/images/sponsors/small/clevercloud-logo.pngClever Cloud
/images/sponsors/small/ipinfo-logo.pngIPInfo
/images/sponsors/small/greengeeks-logo.pngGreenGeeks
/images/sponsors/small/redhat-logo.pngRedHat
/images/sponsors/small/nabu-casa-logo.pngNabu Casa
/images/sponsors/small/wix-logo.pngWix
/images/sponsors/small/wpbeginner-logo.pngWPBeginner
/images/sponsors/small/hoststar-logo.pngHoststar
/images/sponsors/small/one-com-logo.pngone.com
/images/sponsors/small/cargo-logo.pngCargo
/images/sponsors/small/rack-speed-logo.pngRACK::SPEED
/images/sponsors/small/duda-logo.pngDuda
/images/sponsors/small/ads-com-logo.pngAds.com
/images/sponsors/small/cdmon-logo.pngcdmon
/images/sponsors/small/teleport-logo.pngTeleport
/images/sponsors/small/nginx-logo.pngNGINX
...nsors/small/acton-family-giving-logo.pngActon Family Giving
/images/sponsors/small/tailscale-logo.svgTailscale
/images/sponsors/small/bitlaunch-logo.svgBitLaunch
/images/sponsors/small/iban-logo.pngIBAN
/images/sponsors/small/4kdownload-logo.pngVideo Downloader
/images/sponsors/small/entri-logo.svgEntri
/images/sponsors/small/confluent-logo.svgConfluent
/images/sponsors/small/ngrok-logo.pngNgrok
/images/sponsors/small/securew2-logo.pngSecureW2
/images/sponsors/small/20i-logo.svg20i
/images/sponsors/small/SerpApi-black.pngSerpApi
/images/sponsors/small/ipv6rs-logo.pngIPv6rs
/images/sponsors/small/icuk-logo-red.svgICUK
/images/sponsors/small/interserver-logo.pngInterserver
...ges/sponsors/small/DigitalOcean_logo.svgDigitalOcean
/images/sponsors/small/cdn77-logo.pngCDN77
/images/sponsors/small/snipeit-logo.pngSnipe-IT
/images/sponsors/small/showit-logo.pngShowit
/images/sponsors/small/cloudns-logo.pngClouDNS
/images/sponsors/small/smtp2go-logo.pngSMTP2GO
/images/ISRG-Logo-Blue.svgInternet Security Research Group (ISRG)

Page structure

H1 heading
(Critically important)
Encryption for Everybody
Too many H1 headings
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H1 Encryption for Everybody
H1 Getting started
H2 A nonprofit providing free TLS certificates to more than 600M600M 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 Ending TLS Client Authentication Certificate Support in 2026
H3 How Pebble Supports ACME Client Developers
H3 Ten Years of Let's Encrypt: Announcing support from Jeff Atwood
H3 Support Encryption for Everybody
H3 Leading Through Sponsorship
H3 Diamond Sponsors
H3 Platinum Sponsors
H3 Gold Sponsors
H3 Silver Sponsors
H6 Subscribe for email updates about Let's Encrypt and other ISRG projects
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are too many external links (94) on this page.
LinkAttributesAnchor text
https://letsencrypt.org/English
https://letsencrypt.org/ca/Català
https://letsencrypt.org/cs/Čeština
https://letsencrypt.org/da/Dansk
https://letsencrypt.org/de/Deutsch
https://letsencrypt.org/el/Greek
https://letsencrypt.org/es/Español
https://letsencrypt.org/fi/Suomi
https://letsencrypt.org/fr/Français
https://letsencrypt.org/he/עברית
https://letsencrypt.org/hu/Hungarian
https://letsencrypt.org/id/Bahasa Indonesia
https://letsencrypt.org/it/Italiano
https://letsencrypt.org/ja/日本語
https://letsencrypt.org/ko/한국어
https://letsencrypt.org/pl/Polish
https://letsencrypt.org/pt-br/Português do Brasil
https://letsencrypt.org/ru/Русский
https://letsencrypt.org/si/සිංහල
https://letsencrypt.org/sr/Srpski
https://letsencrypt.org/sv/Svenska
https://letsencrypt.org/ta/Tamil
https://letsencrypt.org/th/Thai
https://letsencrypt.org/tr/Türkçe
https://letsencrypt.org/uk/Українська
https://letsencrypt.org/vi/Tiếng Việt
https://letsencrypt.org/zh-cn/简体中文
https://letsencrypt.org/zh-tw/繁體中文
https://letsencrypt.org/Anchor Skip navigation links
https://letsencrypt.org/IMG-ALT Let's Encrypt
https://letsencrypt.org/docs/Documentation
https://community.letsencrypt....External Subdomain Get Help
https://letsencrypt.org/blog/Blog
https://www.abetterinternet.or...External Subdomain Become a Sponsor
https://www.abetterinternet.or...External Subdomain Current Sponsors & Funders
/getinvolved/Get Involved
https://letsencrypt.org/donate/Donate
https://letsencrypt.org/about/Text duplicate Let's Encrypt
https://letsencrypt.org/docs/faq/Frequently Asked Questions (FAQ)
/2023/07/10/cross-sign-expirat...Shortening the Let's Encrypt Chain of Trust
/repository/Policy and Legal Repository
https://letsencrypt.status.io/External Subdomain Service Status
https://letsencrypt.org/stats/Statistics
https://letsencrypt.org/contact/Contact
https://www.abetterinternet.or...External Subdomain Careers
https://www.abetterinternet.or...External Subdomain Annual reports
https://www.abetterinternet.or...External Subdomain Internet Security Research Group (ISRG)
https://letsencrypt.org/donate/Donate Now
https://letsencrypt.org/donate/Text duplicate Donate Now
/getting-startedGet Started
https://letsencrypt.org/sponsorSponsor
https://www.abetterinternet.or...External Subdomain Read the Annual Report →
/2025/05/14/ending-tls-client-...May 14, 2025 Ending TLS Client Authentication Certificate Support in 2026 Let’s Encrypt will no longer include the “TLS Client Authentication” Extended Key U...
/2025/04/30/pebbleacmeimplemen...April 30, 2025 How Pebble Supports ACME Client Developers Our tiny ACME implementation is great for testing and debugging. Read more →
/2025/03/18/community-of-funders/March 18, 2025 Ten Years of Let's Encrypt: Announcing support from Jeff Atwood Seeking to inspire our community of supporters, Jeff Atwood commits $1M to sup...
https://letsencrypt.org/blogSee all our blog posts
/getting-startedLet's Get Started →
https://letsencrypt.org/docsRead Documentation →
/docs/client-optionsBrowse ACME Clients →
https://letsencrypt.org/forumVisit the Forum →
https://letsencrypt.org/donateText duplicate Donate Now
https://letsencrypt.org/sponsorLearn about Sponsorship
https://letsencrypt.org/statsMore stats
https://memorysafety.org/New window External Focused on memory safety in critical Internet infrastructure through the use of memory safe programming languages. Visit Prossimo
IMG-ALT Prossimo logo
https://divviup.org/New window External A privacy-respecting system for collecting and aggregating metrics, built on Multi-Party Computation. Visit Divvi Up
IMG-ALT Divvi Up logo
https://www.google.com/chrome/Nofollow External Subdomain IMG-ALT Google Chrome
https://aws.amazon.com/External Subdomain IMG-ALT Amazon Web Services
https://www.mozilla.org/External Subdomain IMG-ALT Mozilla
https://www.cisco.com/External Subdomain IMG-ALT Cisco
https://www.eff.org/External Subdomain IMG-ALT Electronic Frontier Foundation
https://www.ovh.com/External Subdomain IMG-ALT OVH
https://www.identrust.com/External Subdomain IMG-ALT IdenTrust
https://www.fordfoundation.org/External Subdomain IMG-ALT Ford Foundation
https://www.shopify.com/External Subdomain IMG-ALT Shopify
https://www.ibm.com/External Subdomain IMG-ALT IBM
https://www.heroku.com/External Subdomain IMG-ALT Heroku
https://www.sap.com/External Subdomain IMG-ALT SAP
https://www.squarespace.com/External Subdomain IMG-ALT Squarespace
https://automattic.com/External IMG-ALT Automattic
https://www.akamai.com/External Subdomain IMG-ALT Akamai
https://www.cyon.ch/External Subdomain IMG-ALT Cyon
https://www.infomaniak.ch/External Subdomain IMG-ALT Infomaniak
https://www.hostpoint.ch/External Subdomain IMG-ALT HostPoint
https://www.siteground.com/External Subdomain IMG-ALT SiteGround
https://www.vultr.com/External Subdomain IMG-ALT Vultr
https://www.planethoster.com/External Subdomain IMG-ALT Hébergement web
https://www.fastly.com/External Subdomain IMG-ALT Fastly
https://www.3cx.com/External Subdomain IMG-ALT 3CX
https://www.jimdo.com/External Subdomain IMG-ALT Jimdo
https://www.zendesk.com/External Subdomain IMG-ALT Zendesk
https://www.netlify.com/External Subdomain IMG-ALT Netlify
https://www.hostpapa.com/lets-...External Subdomain IMG-ALT HostPapa
https://dnsimple.com/letsencryptExternal IMG-ALT dnsimple
https://shiguredo.jp/External IMG-ALT Shiguredo
https://www.discourse.org/External Subdomain IMG-ALT Discourse
https://driving-tests.org/External IMG-ALT driving-tests.org
https://www.sakura.ad.jp/External Subdomain IMG-ALT Sakura Internet
https://www.duocircle.com/External Subdomain IMG-ALT DuoCircle
https://serverpilot.io/External IMG-ALT ServerPilot
https://domainname.shop/External IMG-ALT DomainName.Shop
https://github.com/External IMG-ALT GitHub
https://unraid.net/External IMG-ALT Lime Technology (Unraid)
https://keenetic.com/External IMG-ALT Keenetic
https://www.haproxy.com/External Subdomain IMG-ALT HAProxy
https://www.mongodb.com/External Subdomain IMG-ALT MongoDB
https://www.livesport.eu/External Subdomain IMG-ALT Livesport
https://www.clever-cloud.com/External Subdomain IMG-ALT Clever Cloud
https://ipinfo.io/External IMG-ALT IPInfo
https://www.greengeeks.com/External Subdomain IMG-ALT GreenGeeks
https://www.redhat.com/External Subdomain IMG-ALT RedHat
https://www.nabucasa.com/External Subdomain IMG-ALT Nabu Casa
https://www.wix.com/External Subdomain IMG-ALT Wix
https://www.wpbeginner.com/External Subdomain IMG-ALT WPBeginner
https://www.hoststar.ch/External Subdomain IMG-ALT Hoststar
https://www.one.com/External Subdomain IMG-ALT one.com
https://cargo.site/External IMG-ALT Cargo
https://rackspeed.de/External IMG-ALT RACK::SPEED
https://www.duda.co/External Subdomain IMG-ALT Duda
https://www.ads.com/External Subdomain IMG-ALT Ads.com
https://www.cdmon.com/es/External Subdomain IMG-ALT cdmon
https://goteleport.com/External IMG-ALT Teleport
https://www.nginx.com/External Subdomain IMG-ALT NGINX
https://actonfamilygiving.org/External IMG-ALT Acton Family Giving
https://tailscale.com/External IMG-ALT Tailscale
https://bitlaunch.io/External IMG-ALT BitLaunch
https://www.iban.com/External Subdomain IMG-ALT IBAN
https://www.4kdownload.com/-1u...External Subdomain IMG-ALT Video Downloader
https://www.entri.com/External Subdomain IMG-ALT Entri
https://www.confluent.io/External Subdomain IMG-ALT Confluent
https://ngrok.com/External IMG-ALT Ngrok
https://www.securew2.com/External Subdomain IMG-ALT SecureW2
https://www.20i.com/External Subdomain IMG-ALT 20i
https://serpapi.com/External IMG-ALT SerpApi
https://ipv6.rs/External IMG-ALT IPv6rs
https://www.icuk.net/External Subdomain IMG-ALT ICUK
https://www.interserver.net/External Subdomain IMG-ALT Interserver
https://www.digitalocean.com/External Subdomain IMG-ALT DigitalOcean
https://www.cdn77.com/External Subdomain IMG-ALT CDN77
https://snipeitapp.com/External IMG-ALT Snipe-IT
https://showit.com/External IMG-ALT Showit
https://www.cloudns.net/External Subdomain IMG-ALT ClouDNS
https://www.smtp2go.com/External Subdomain IMG-ALT SMTP2GO
https://letsencrypt.org/sponsorText duplicate Learn about Sponsorship
https://www.abetterinternet.org/External Subdomain Text duplicate Internet Security Research Group (ISRG)
https://www.abetterinternet.or...External Subdomain 2024 Annual Report
https://www.abetterinternet.org/New window External Subdomain Internet Security Research Group
https://github.com/letsencryptNew window External Text duplicate GitHub
https://www.linkedin.com/compa...New window External Subdomain LinkedIn
https://www.abetterinternet.or...New window External Subdomain Terms
https://letsencrypt.org/privacy/Privacy Policy
https://www.abetterinternet.or...New window External Subdomain Trademark Policy

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://letsencrypt.org/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.03 seconds.
The file size of the HTML document is fine (82 kB).

HTTP Response Header

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accept-rangesbytes
age36059
cache-controlpublic,max-age=0,must-revalidate
cache-status"Netlify Edge"; hit
content-encodingbr
content-security-policydefault-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-typetext/html; charset=UTF-8
dateFri, 16 May 2025 10:47:21 GMT
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referrer-policyno-referrer
serverNetlify
strict-transport-securitymax-age=31536000
varyAccept-Encoding
x-content-type-optionsnosniff
x-frame-optionsDENY
x-nf-request-id01JVCB9APY2F400JYACT1EXR5T
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content-length9451
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 60,712 referring domains.
This page has 6,376,963 backlinks.
This page has backlinks from 32,429 different ip addresses.

Search preview

letsencrypt.org
Let's Encrypt
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 2024 Annual Report.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
Encrypt93%Check
Encrypt free73%Check
Let's Encrypt63%Check
Security56%Check
Certificate54%Check
ISRG54%Check
Encryption54%Check
Everybody54%Check
Internet Security53%Check
Security Research53%Check

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