Letsencrypt.org - SEO Checker

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Overview of the SEO Check
Meta information
61% 
Page quality
48% 
Page structure
79% 
Link structure
63% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.03 s
File size
52.60 kB
Words
331
Media files
76
Number of links
57 internal / 88 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Let's Encrypt
The page title is too short. (118 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 2023 Annual Report.
The meta description is too long: 1282 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://letsencrypt.org/
There is a valid canonical link 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 0.89.1
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 2023 Annual Report.
og:imagehttps://letsencrypt.org/images/LetsEncrypt-SocialShare.png
langen-us
twitter:cardsummary
twitter:site@letsencrypt
twitter:titleLet's Encrypt
twitter:urlhttps://letsencrypt.org/
twitter: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 2023 Annual Report.
twitter:image:srchttps://letsencrypt.org/images/le-logo-twitter-noalpha.png
X-UA-CompatibleIE=edge
charsetutf-8

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
Only 1 paragraph/s was/were found on this page.
There are only 331 words on this page. Good pages should have about 800 words of useful content.
The average number of words per sentence of 35 words is high.
27.5% of the text are stop words.
The page contains a listing, which indicates a good text layout.
No placeholders texts or images were found.
There are no duplicates on the site.
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 7 tags for this page.
Image SEO
(Somewhat important)
1 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/letsencrypt-logo-horizontal.svgLet's Encrypt
/images/language-icon128px-black.pngNo alt attribute provided
/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/meta-logo.pngMeta
/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/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/brave-logo.pngBrave
/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/heroku-logo.pngHeroku
/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/yubico-logo.pngYubico
/images/sponsors/small/4kdownload-logo.pngVideo Downloader
/images/sponsors/small/entri-logo.svgEntri
/images/sponsors/small/confluent-logo.svgConfluent
/images/sponsors/small/jetbrains-logo.pngJet Brains
/images/sponsors/small/ngrok-logo.pngNgrok
/images/sponsors/small/securew2-logo.svgSecureW2
/images/sponsors/small/20i-logo.svg20i
/images/sponsors/small/SerpApi-black.pngSerpApi
/images/sponsors/small/ipv6rs-logo.pngIPv6rs

Page structure

H1 heading
(Critically important)
A nonprofit Certificate Authority providing TLS certificates to 450 million websites.
The H1 heading is perfect.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H1 A nonprofit Certificate Authority providing TLS certificates to 450 million websites.
H2 Read all about our nonprofit work this year in our 2023 Annual Report.
H2 From our blog
H2 Intent to End OCSP Service
H2 More Memory Safety for Let’s Encrypt: Deploying ntpd-rs
H2 Let’s Encrypt Continues Partnership with Princeton to Bolster Internet Security
H2 Takeaways from Tailscale’s Adoption of ARI
H2 An Engineer’s Guide to Integrating ARI into Existing ACME Clients
H2 Major Sponsors and Funders
H2 Support a more secure and privacy-respecting Web.
H6 Subscribe for email updates about Let's Encrypt and other ISRG projects
Some anchor texts are used more than once.
There are 5 links with a trivial anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are too many external links (88) on this page.

Found links on this page

LinkAttributesAnchor text
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://www.abetterinternet.or...External Subdomain Become a Sponsor
https://letsencrypt.org/sponsors/Current Sponsors and Funders
/getinvolved/Get Involved
https://letsencrypt.org/donate/Additional Donation Information
https://letsencrypt.org/about/Text duplicate Let's Encrypt
https://www.abetterinternet.or...External Subdomain Internet Security Research Group (ISRG)
https://letsencrypt.org/docs/faq/Frequently Asked Questions (FAQ)
/2023/07/10/cross-sign-expirationShortening 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://www.abetterinternet.or...External Subdomain Careers
https://letsencrypt.org/contact/Contact
https://letsencrypt.org/blog/Blog
https://letsencrypt.org/✓ English
https://letsencrypt.org/da/Dansk
https://letsencrypt.org/he/עברית
https://letsencrypt.org/zh-cn/简体中文
https://letsencrypt.org/ru/Русский
https://letsencrypt.org/ca/Català
https://letsencrypt.org/cs/Čeština
https://letsencrypt.org/el/Greek
https://letsencrypt.org/pl/Polish
https://letsencrypt.org/ta/Tamil
https://letsencrypt.org/th/Thai
https://letsencrypt.org/tr/Türkçe
https://letsencrypt.org/de/Deutsch
https://letsencrypt.org/es/Español
https://letsencrypt.org/fi/Suomi
https://letsencrypt.org/fr/Français
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/pt-br/Português do Brasil
https://letsencrypt.org/si/සිංහල
https://letsencrypt.org/sr/Srpski
https://letsencrypt.org/sv/Svenska
https://letsencrypt.org/uk/Українська
https://letsencrypt.org/vi/Tiếng Việt
https://letsencrypt.org/zh-tw/繁體中文
https://abetterinternet.org/an...External 2023 Annual Report
/getting-started/Get Started
https://www.abetterinternet.or...External Subdomain Sponsor
https://letsencrypt.org/blog/From our blog
/2024/07/23/replacing-ocsp-wit...Intent to End OCSP Service
/2024/07/23/replacing-ocsp-wit...Trivial anchor text
Read more
/2024/06/24/ntpd-rs-deploymentMore Memory Safety for Let’s Encrypt: Deploying ntpd-rs
/2024/06/24/ntpd-rs-deploymentText duplicate Trivial anchor text
Read more
/2024/05/30/princeton-partnershipLet’s Encrypt Continues Partnership with Princeton to Bolster Internet Security
/2024/05/30/princeton-partnershipText duplicate Trivial anchor text
Read more
/2024/05/01/ari-in-tailscaleTakeaways from Tailscale’s Adoption of ARI
/2024/05/01/ari-in-tailscaleText duplicate Trivial anchor text
Read more
/2024/04/25/guide-to-integrati...An Engineer’s Guide to Integrating ARI into Existing ACME Clients
/2024/04/25/guide-to-integrati...Text duplicate Trivial anchor text
Read more
https://letsencrypt.org/feed.xmlvia RSS
https://letsencrypt.org/sponsors/Major Sponsors and Funders
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.meta.com/External Subdomain IMG-ALT Meta
https://www.identrust.com/External Subdomain IMG-ALT IdenTrust
https://www.fordfound.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.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://brave.com/External IMG-ALT Brave
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.heroku.com/External Subdomain IMG-ALT Heroku
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://yubico.com/External IMG-ALT Yubico
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://www.jetbrains.com/External Subdomain IMG-ALT Jet Brains
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://letsencrypt.org/donate/Donate
https://www.abetterinternet.org/External Subdomain Text duplicate Internet Security Research Group (ISRG)
https://www.abetterinternet.or...External Subdomain Text duplicate 2023 Annual Report
https://github.com/letsencryptExternal Text duplicate GitHub
https://www.linkedin.com/compa...External Subdomain LinkedIn
https://x.com/letsencryptExternal X
https://infosec.exchange/@lets...External Mastodon
https://letsencrypt.org/privacy/privacy policy
https://www.abetterinternet.or...External Subdomain trademark policy
https://abetterinternet.org/External © 2024 Internet Security Research Group

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://letsencrypt.org/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.03 seconds.
The file size of the HTML document is fine (53 kB).

HTTP Response Header

NameValue
accept-rangesbytes
age54325
cache-controlpublic,max-age=0,must-revalidate
cache-status"Netlify Edge"; hit
content-encodinggzip
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
dateSun, 06 Oct 2024 21:47:21 GMT
etag"bd036c357adb3cadbfaac3af9a434f06-ssl-df"
permissions-policygeolocation=(), midi=(), notifications=(), push=(), sync-xhr=(), microphone=(), camera=(), magnetometer=(), gyroscope=(), speaker=(self), vibrate=(), fullscreen=(self), interest-cohort=()
referrer-policyno-referrer
serverNetlify
strict-transport-securitymax-age=31536000
varyAccept-Encoding
x-content-type-optionsnosniff
x-frame-optionsDENY
x-nf-request-id01J9HWT911GKD96F4BS5CSVAYB
x-xss-protection1; mode=block
content-length6596
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 71,905 referring domains.
This page has 9,427,633 backlinks.
This page has backlinks from 38,752 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Sitemap: https://letsencrypt.org/sitemap.xml

Similar sites

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 2023 Annual Report.

Most important keywords

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

KeywordResultRecheck
Encrypt81%Check
nonprofit66%Check
Certificate62%Check
Authority62%Check
Certificate Authority62%Check
nonprofit work60%Check
Let's Encrypt56%Check
open certificate authority brought54%Check
Internet52%Check
Internet Security51%Check
Show more keywords and terms

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