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stamen.com

Stamen | Data Visualization Design Agency & Cartography Firm

Last scanned Aug 24, 2026, 1:22 PM · 1 view

81

Overall score

Great

Summary

More than 20 years of building impactful, award-winning visualizations and custom data viz tools. This website uses WordPress hosted on Cloudflare behind Cloudflare CDN. SEO is good (85/100) and accessibility is fair (70/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

More than 20 years of building impactful, award-winning visualizations and custom data viz tools. Recipient of National Interaction Design Award from the Smithsonian.

United States
Hosted on Cloudflare

Top issues to fix

8 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.

  • 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.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

+2 more issues — details in the sections below.

85

SEO

3 issue(s) found

100

Performance

318 ms

65

Security

HTTPS & header checks

70

Accessibility

1 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.

More than 20 years of building impactful, award-winning visualizations and custom data viz tools. Recipient of National Interaction Design Award from the Smithsonian.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Stamen | Data Visualization Design Agency & Cartography Firm
Description
More than 20 years of building impactful, award-winning visualizations and custom data viz tools. Recipient of National Interaction Design Award from the Smithsonian.
Canonical
https://stamen.com/
Language
en-US
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Stamen | Data Visualization Design Agency & Cartography Firm
og:description
More than 20 years of building impactful, award-winning visualizations and custom data viz tools. Recipient of National Interaction Design Award from the Smithsonian.
og:type
website
og:url
https://stamen.com/

Twitter Card

twitter:card
summary
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
141.193.213.10
ASN
AS209242 (CLOUDFLARESPECTRUM - Cloudflare London, LLC, US)

DNS records

TypeValue
A
  • 141.193.213.10
  • 141.193.213.11
AAAA
MX
  • aspmx3.googlemail.com
  • aspmx2.googlemail.com
  • aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
TXT
  • google-site-verification=FS92PeMMyo9BWM6cG2LaVt0gv7ja_xThXPgeWpqHjQw
  • google-site-verification=IFmAbMPOEe2JIcHuCRLekdQ9-l0k0yDY89en7YMdKtI
  • v=spf1 include:_spf.google.com include:_spf.act-on.net include:servers.mcsv.net include:amazonses.com -all
NS
  • ns-897.awsdns-48.net
  • ns-1175.awsdns-18.org
  • ns-371.awsdns-46.com
  • ns-1617.awsdns-10.co.uk
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
stamen.com
Valid from
Jun 29, 2026
Valid to
Sep 27, 2026
Days until expiry
33
SAN domains
stamen.com

Security headers

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

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 2 · H2 4 · H3 0

Links

17 internal · 1 external · 0 broken

Images

23 total · 12 missing alt

Scripts / Styles

84 scripts · 13 stylesheets

JS / CSS size

823 KB · 37.3 KB

Page size

119 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Meta description longer than 160 characters
  • Multiple H1 headings found
  • robots.txt not found

Accessibility issues

  • Over half of images are missing alt text

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

Scan details

Requested URL
https://stamen.com
Final URL
https://stamen.com
HTTP status
200
HTTP version
HTTP/2
Response time
316 ms
HTML size
119 KB
Redirect chain
https://stamen.com

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Frequently asked questions

What technology does stamen.com use?
stamen.com is built with WordPress, jQuery, Google Analytics.
Is stamen.com secure (HTTPS)?
Yes. stamen.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 27, 2026.
Who hosts stamen.com?
stamen.com is hosted on Cloudflare, behind Cloudflare CDN.
What is stamen.com's SEO score?
stamen.com scored 85/100 for SEO in the latest analysis (great).
What is stamen.com's overall website score?
stamen.com has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.
Is stamen.com hiring?
stamen.com has a careers page; check it directly for current openings.