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bulma.io

Bulma: Free, open source, and modern CSS framework based on Flexbox

Last scanned Jul 26, 2026, 1:49 PM · 4 views

76

Overall score

Fair

Summary

Bulma is a free, open source CSS framework based on Flexbox and built with Sass. This website uses Cloudflare Analytics behind Cloudflare CDN. SEO is fair (70/100) and accessibility is fair (70/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

Bulma is a free, open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.

Top issues to fix

11 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.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

+5 more issues — details in the sections below.

70

SEO

5 issue(s) found

100

Performance

305 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.

Bulma is a free, open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.

X (Twitter)X (Twitter)X (Twitter)X (Twitter)X (Twitter)X (Twitter)X (Twitter)X (Twitter)X (Twitter)X (Twitter)

Meta tags

Title
Bulma: Free, open source, and modern CSS framework based on Flexbox
Description
Bulma is a free, open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.
Canonical
https://bulma.io/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Bulma: Free, open source, and modern CSS framework based on Flexbox
og:description
Bulma is a free, open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.
og:type
website
og:url
https://bulma.io

Twitter Card

twitter:card
summary_large_image
twitter:title
Bulma: Free, open source, and modern CSS framework based on Flexbox
twitter:description
Bulma is a free, open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.

Technologies

Detected frameworks, languages, and tools.

Cloudflare Analytics

Hosting & CDN

Hosting provider
—
CDN provider
Cloudflare
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
bulma.io
Valid from
Jun 10, 2026
Valid to
Sep 8, 2026
Days until expiry
41
SAN domains
bulma.io, *.bulma.io

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 4 · H2 12 · H3 7

Links

19 internal · 137 external · 20 broken

Images

55 total · 48 missing alt

Scripts / Styles

10 scripts · 4 stylesheets

JS / CSS size

1.3 KB · 557 B

Page size

291 KB

Robots.txt & Sitemap

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

SEO issues

  • Title longer than 60 characters
  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text

Scan details

Requested URL
https://bulma.io
Final URL
https://bulma.io
HTTP status
200
HTTP version
HTTP/2
Response time
300 ms
HTML size
291 KB
Redirect chain
https://bulma.io

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does bulma.io use?
bulma.io is built with Cloudflare Analytics.
Is bulma.io secure (HTTPS)?
Yes. bulma.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 8, 2026.
Who hosts bulma.io?
Hosting provider information for bulma.io is not available yet.
What is bulma.io's SEO score?
bulma.io scored 70/100 for SEO in the latest analysis (fair).
What is bulma.io's overall website score?
bulma.io has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.