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theora.org

https://theora.org· First analyzed 07 May 2026· Updated 07 May 2026
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theora.org
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Mobile

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Hosting Provider

University of Oregon

IP Address

140.211.167.215

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Corvallis, United States

ASN

AS3701

Organization

University of Oregon

Server

Nginx

Nameservers

ns1.xiph.org.ns2.xiph.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
663 ms10%
Speed Index
862 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
17 KB
7 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
University of Oregon

Technology Stack

2 Technologies Detected

Payments

1
PayPal

Web Servers

1
Nginx

SEO Analysis

D49/100
14
7
2
Meta Tags9/15
Content7/12
Headings6/8
Technical6/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
T
theora.orgtheora.org

Theora.org :: main - Theora, video for everyone

No description available for this page.

Title Length47 chars

Recommended: 50-60 chars (~281px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

9 issues found

Upgrade to view details

Local SEO

Local Search Readiness

0/100
Poor
15 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

F34/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
7/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:28%
Words:168
Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary44w
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
B
71/100
9
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
56/100
A+
2 mg
CO₂e / view
17.2 KB
Page Weight
95%
Cleaner Than
New Visitor
2 mg
vs
Returning (cached)
1 mg
Annual (10K/mo)
252 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
1 mg
Resource Breakdown
Images
12.1 KB
CSS
3.0 KB
HTML
2.1 KB
Green Hosting Not Verified
University of Oregon
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical
Critical / Transactional

HTTPS

No WAF

43d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

22.03.2026

Valid Until

20.06.2026

Subject Alternative Names (2)

theora.orgwww.theora.org

SHA-256 Fingerprint

0D:83:26:F0:6A:DB:89:80:AF:A5:F1:BD:FD:B6:75:3F:1F:6B:89:FD...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-type
text/html
date
Thu, 07 May 2026 20:09:21 GMT
server
nginx
strict-transport-security
max-age=63072000
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

theora.org

Domain Age
24 years

Created

10.05.2002

Expires

10.05.2027

Last Updated

25.04.2026

Registrar

Domain.com - Network Solutions, LLC

DNSSEC
Not Enabled

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
F
39/100
Not Mobile Friendly
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Verdana

WCAG Partial
58/100
Readability
/30
14/30

12px · LH 1.40

Hierarchy
/20
13/20

1.3x ratio · ✓ H1→H6

WCAG
/25
17/25

1:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Verdana

Sans16px

Body Font

Verdana

Sans12px

Contrast Ratio

1:1

14 issues

Reading Comfort

~119 CPL

Too wide
16px
h1
12px
p

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very long lines: ~118 chars/line causes eye strain. Add max-width constraint.

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

Buy on MyFontsFlesch 51

Color Palette

8 unique colors
5.74:1 AA Light
#ffffff
Background· 89.60000000000001%
#666666
Other· 3.5999999999999996%
#bdb4a2
Primary· 0.9%
#eae3d2
Secondary· 0.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

1 Resources

0
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

theora.org

24 years old
Location detected: 🇺🇸 United Statesvia ip
Domain.com - Network Solutions, LLC

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Last analyzed: 07 May 2026 at 20:09

Historical Analysis & Change Tracking