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SGSiteGraph

keras.io

Keras: Deep Learning for humans

Last scanned Jul 26, 2026, 5:17 AM

79

Overall score

Fair

Summary

Keras documentation. This website uses Google Analytics hosted on AWS behind CloudFront CDN. SEO is good (75/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance good (80/100). Top issue: Missing canonical link.

Keras documentation

United States
Hosted on AWS

Top issues to fix

10 issues found · 3 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Slow estimated load (5.1s)

    Performance

    Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

+4 more issues — details in the sections below.

75

SEO

4 issue(s) found

80

Performance

5.15 s

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Keras documentation

GitHub

Meta tags

Title
Keras: Deep Learning for humans
Description
Keras documentation
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1, shrink-to-fit=yes
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

Google Analytics

Hosting & CDN

Hosting provider
AWS
CDN provider
CloudFront
IP address
108.158.61.30
ASN
AS16509 (AMAZON-02 - Amazon.com, Inc., US)

DNS records

TypeValue
A
  • 108.158.61.30
  • 108.158.61.116
  • 108.158.61.80
  • 108.158.61.17
AAAA—
MX—
TXT
  • google-site-verification=kfU4QbBwpAZh9lL1udGJXPaW5MoliR6khZMA4VUn74I
NS
  • ns-1928.awsdns-49.co.uk
  • ns-201.awsdns-25.com
  • ns-595.awsdns-10.net
  • ns-1294.awsdns-33.org
CAA
  • 0 issue "amazon.com"
  • 0 issue "pki.goog"
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
keras.io
Valid from
Jul 1, 2026
Valid to
Sep 29, 2026
Days until expiry
65
SAN domains
keras.io, blog.keras.io, www.keras.io

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 7 · H3 6

Links

21 internal · 15 external · 2 broken

Images

14 total · 0 missing alt

Scripts / Styles

8 scripts · 5 stylesheets

JS / CSS size

42.8 KB · 13.8 KB

Page size

27.4 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
59

SEO issues

  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://keras.io
Final URL
https://keras.io
HTTP status
200
HTTP version
HTTP/1.1
Response time
5.15 s
HTML size
27.4 KB
Redirect chain
https://keras.io

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does keras.io use?
keras.io is built with Google Analytics.
Is keras.io secure (HTTPS)?
Yes. keras.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 29, 2026.
Who hosts keras.io?
keras.io is hosted on AWS, behind CloudFront CDN.
What is keras.io's SEO score?
keras.io scored 75/100 for SEO in the latest analysis (fair).
What is keras.io's overall website score?
keras.io has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.