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allthingsdistributed.com

All Things Distributed

Last scanned Aug 24, 2026, 1:21 PM

79

Overall score

Fair

Summary

Werner Vogels on building scalable and robust distributed systems. This website is hosted on AWS. SEO is good (85/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: No H1 heading found.

Werner Vogels on building scalable and robust distributed systems

United States
Hosted on AWS

Top issues to fix

7 issues found · 4 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.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • 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.

+1 more issue — details in the sections below.

85

SEO

2 issue(s) found

100

Performance

4 ms

65

Security

HTTPS & header checks

60

Accessibility

2 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.

Werner Vogels on building scalable and robust distributed systems

Meta tags

Title
All Things Distributed
Description
Werner Vogels on building scalable and robust distributed systems
Canonical
https://www.allthingsdistributed.com/index.html
Language
en
Charset
utf-8
Viewport
width=device-width,initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
All Things Distributed
og:description
Werner Vogels on building scalable and robust distributed systems
og:type
website
og:url
https://www.allthingsdistributed.com/index.html

Twitter Card

twitter:card
summary
twitter:title
All Things Distributed
twitter:description
Werner Vogels on building scalable and robust distributed systems

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider
AWS
CDN provider
CloudFront
IP address
13.227.249.17
ASN
AS16509 (AMAZON-02 - Amazon.com, Inc., US)

DNS records

TypeValue
A
  • 13.227.249.17
  • 13.227.249.48
  • 13.227.249.3
  • 13.227.249.114
AAAA
MX
  • smtp.google.com
TXT
  • google-site-verification=cGsD5HzGjy_A0z-K-R2JwPsqFz8yxiim3cSZH2Bqzd8
NS
  • ns-2005.awsdns-58.co.uk
  • ns-49.awsdns-06.com
  • ns-884.awsdns-46.net
  • ns-1186.awsdns-20.org
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Amazon
Subject
allthingsdistributed.com
Valid from
Sep 29, 2025
Valid to
Oct 28, 2026
Days until expiry
65
SAN domains
allthingsdistributed.com, www.allthingsdistributed.com

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 0 · H2 2 · H3 0

Links

26 internal · 4 external · 0 broken

Images

1 total · 1 missing alt

Scripts / Styles

4 scripts · 0 stylesheets

JS / CSS size

15.7 KB · 94.3 KB

Page size

15.8 KB

Robots.txt & Sitemap

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

SEO issues

  • No H1 heading found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text
  • No H1 heading found

Scan details

Requested URL
https://allthingsdistributed.com
Final URL
https://allthingsdistributed.com
HTTP status
200
HTTP version
HTTP/2
Response time
4 ms
HTML size
15.8 KB
Redirect chain
https://allthingsdistributed.com

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Frequently asked questions

What technology does allthingsdistributed.com use?
We did not detect any specific technologies for allthingsdistributed.com in the latest scan.
Is allthingsdistributed.com secure (HTTPS)?
Yes. allthingsdistributed.com uses TLS 1.3 with a certificate issued by Amazon, valid until Oct 28, 2026.
Who hosts allthingsdistributed.com?
allthingsdistributed.com is hosted on AWS, behind CloudFront CDN.
What is allthingsdistributed.com's SEO score?
allthingsdistributed.com scored 85/100 for SEO in the latest analysis (great).
What is allthingsdistributed.com's overall website score?
allthingsdistributed.com has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.