Ssl.org - SEO Checker

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Overview of the SEO Check
Meta information
84% 
Page quality
90% 
Page structure
100% 
Link structure
100% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.18 s
File size
28.30 kB
Words
1530
Media files
1
Number of links
10 internal / 2 external

Meta specifications

Title
(Critically important)
SSL Checker
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)
Check SSL certificate information
The length of the meta description is perfect. (205 pixels out of 1000 max pixel length)
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
Server location: United States of America
The following language is defined by HTML: en
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)
The favicon is linked correctly.

Meta tags

NameValue
descriptionCheck SSL certificate information
viewportwidth=device-width, initial-scale=1, shrink-to-fit=no
authoriban.com
copyrightCopyright © ssl.org All rights reserved.
referrerno-referrer
langen
charsetUTF-8

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Page quality

Content
(Critically important)
This page contains 1530 words. That's ok.
38.3% 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.
28 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 17.9 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, shrink-to-fit=no" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 31 tags for this page.
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
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
https://www.ssl.org/img/logo.svgSSLSSL.org

Page structure

H1 heading
(Critically important)
SSL Certificate Checker
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 SSL Certificate Checker
H2 Free online tool for test SSL security
H2 SSL definition and history
H2 Browser and server communication
H2 Establish a secure HTTPS connection
H2 What this tool checks, and why each check matters
H2 Every check at a glance
H2 Why SSL/TLS validation matters
H2 Frequently asked questions
H2 How to use SSL checker form below?
H3 Certificate Details
H3 SSL Expiry Check
H3 TLS Protocols
H3 Cipher Algorithms
H3 Vulnerability Scanner
H3 Server Headers
H3 Misconfiguration is the common failure
H3 HTTPS is a browser & search baseline
H3 It's a compliance requirement
H3 What does the SSL checker actually test?
H3 Why does my certificate show as not trusted when it works in my own browser?
H3 Does a valid certificate mean my server is secure?
H3 How often should I check my SSL certificate?
H3 Can I check certificates on internal or private hostnames?
The number of internal links is ok.
Every linktext is unique.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 2 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.ssl.org/IMG-ALT SSL
https://www.ssl.org/SSL Checker
/ssl-vulnerability-testVulnerability Test
/security-headersSecurity Headers
https://www.ssl.org/csr-generatorCSR Generator
https://www.ssl.org/csr-decoderCSR Decoder
/server-config-generatorConfig Generator
/cipher-suite-mappingCipher Mapping
https://www.iban.com/External Subdomain IBAN
https://www.ssl.org/privacyPrivacy
https://www.ssl.org/termsTerms
https://www.iban.com/contactExternal Subdomain Contact

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.ssl.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 0.18 seconds.
The file size of the HTML document is fine (28 kB).

HTTP Response Header

NameValue
servernginx
dateFri, 19 Jun 2026 07:18:56 GMT
content-typetext/html; charset=UTF-8
varyAccept-Encoding
reporting-endpointscsp="/csp-report.php"
content-security-policydefault-src 'none'; script-src 'nonce-qQuXKGt1wrSfClJOO/JpvQ==' 'strict-dynamic'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https://www.httptracker.com; font-src 'self'; connect-src 'self' https://www.httptracker.com; object-src 'none'; base-uri 'none'; form-action 'self'; frame-ancestors 'self'; frame-src 'none'; upgrade-insecure-requests; report-uri /csp-report.php; report-to csp
strict-transport-securitymax-age=31536000; includeSubDomains; preload
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
x-xss-protection0
referrer-policystrict-origin-when-cross-origin
permissions-policyaccelerometer=(), camera=(), display-capture=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=()
cross-origin-opener-policysame-origin
x-permitted-cross-domain-policiesnone
x-dns-prefetch-controloff
origin-agent-cluster?1
alt-svch3=":443"; ma=86400
content-encodingbr
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 61 referring domains.
This page has 31,659 backlinks.
This page has backlinks from 52 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

# ssl.org - robots.txt

User-agent: Googlebot
Allow: /
User-agent: bingbot
Allow: /
User-agent: Applebot
Allow: /

# OpenAI
User-agent: OAI-SearchBot
Allow: /
User-agent: ChatGPT-User
Allow: /
# Anthropic / Claude
User-agent: Claude-SearchBot
Allow: /
User-agent: Claude-User
Allow: /
# Perplexity
User-agent: PerplexityBot
Allow: /
User-agent: Perplexity-User
Allow: /
# xAI / Grok (documented UAs - see note below, rarely honored)
User-agent: GrokBot
Allow: /
User-agent: xAI-Grok
Allow: /
User-agent: Grok-DeepSearch
Allow: /
# Apple Intelligence search uses Applebot (allowed above)
# DuckDuckGo AI
User-agent: DuckAssistBot
Allow: /
# Mistral
User-agent: MistralAI-User
Allow: /
# Amazon
User-agent: Amazonbot
Allow: /

# Blocking these does NOT reduce citation eligibility above.
User-agent: GPTBot
Disallow: /
User-agent: ClaudeBot
Disallow: /
User-agent: Google-Extended
Disallow: /
User-agent: Applebot-Extended
Disallow: /
User-agent: CCBot
Disallow: /
User-agent: Meta-ExternalAgent
Disallow: /
User-agent: meta-externalagent
Disallow: /
User-agent: Bytespider
Disallow: /

User-agent: *
Allow: /

Sitemap: https://www.ssl.org/sitemap.xml

Similar sites

Search preview

www.ssl.org
SSL Checker
Check SSL certificate information

Most important keywords

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

KeywordResultRecheck
SSL93%Check
Check SSL85%Check
SSL Certificate79%Check
SSL Checker79%Check
check SSL certificate78%Check
Check77%Check
TLS SSL68%Check
Certificate66%Check
Checker66%Check
certificate valid56%Check
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