What technology does bigbluebutton.org use?

bigbluebutton.org is built with WordPress, jQuery, Apache.

Is bigbluebutton.org secure (HTTPS)?

Yes. bigbluebutton.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 12, 2026.

Who hosts bigbluebutton.org?

Hosting provider information for bigbluebutton.org is not available yet.

What is bigbluebutton.org's SEO score?

bigbluebutton.org scored 90/100 for SEO in the latest analysis (excellent).

What is bigbluebutton.org's overall website score?

bigbluebutton.org has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.

Has bigbluebutton.org's score changed over time?

bigbluebutton.org's overall score has declined by 1 point (from 89 to 88) since Jul 26, 2026.

bigbluebutton.org

Virtual Classroom Software | BigBlueButton

Last scanned Aug 3, 2026, 6:00 PM · 10 views

Overall score

Great

Summary

BigBlueButton is an open source virtual classroom software. This website uses WordPress. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: robots.txt not found.

BigBlueButton is an open source virtual classroom software. This platform was developed for virtual learning and education. Try it today!

Top issues to fix

7 issues found · 2 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.
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.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

SEO

2 issue(s) found

100

Performance

728 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-1 overall since Jul 26, 2026

Overall: 88
SEO: 90
Security: 65
Performance: 100
Accessibility: 100

Organization

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

BigBlueButton is an open source virtual classroom software. This platform was developed for virtual learning and education. Try it today!

Facebook X (Twitter)Instagram YouTube GitHub LinkedIn

Meta tags

Title: Virtual Classroom Software | BigBlueButton
Description: BigBlueButton is an open source virtual classroom software. This platform was developed for virtual learning and education. Try it today!
Canonical: https://bigbluebutton.org/
Language: en-US
Charset: UTF-8
Viewport: width=device-width, initial-scale=1
Robots meta: index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Manifest

Technologies

Detected frameworks, languages, and tools.

WordPress jQuery Apache

Hosting & CDN

Hosting provider: —
CDN provider: —
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: bigbluebutton.org
Valid from: Jun 14, 2026
Valid to: Sep 12, 2026
Days until expiry: 40
SAN domains: bigbluebutton.org, www.bigbluebutton.org

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 1 · H2 25 · H3 10

Links

29 internal · 18 external · 20 broken

Images

35 total · 0 missing alt

Scripts / Styles

35 scripts · 53 stylesheets

JS / CSS size

19.4 KB · 17.4 KB

Page size

259 KB

Robots.txt & Sitemap

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

SEO issues

robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://bigbluebutton.org
Final URL: https://bigbluebutton.org
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 723 ms
HTML size: 259 KB
Redirect chain: https://bigbluebutton.org

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does bigbluebutton.org use?: bigbluebutton.org is built with WordPress, jQuery, Apache.
Is bigbluebutton.org secure (HTTPS)?: Yes. bigbluebutton.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 12, 2026.
Who hosts bigbluebutton.org?: Hosting provider information for bigbluebutton.org is not available yet.
What is bigbluebutton.org's SEO score?: bigbluebutton.org scored 90/100 for SEO in the latest analysis (excellent).
What is bigbluebutton.org's overall website score?: bigbluebutton.org has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
Has bigbluebutton.org's score changed over time?: bigbluebutton.org's overall score has declined by 1 point (from 89 to 88) since Jul 26, 2026.