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vorbis.com

https://vorbis.com· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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vorbis.com
Desktop screenshot of vorbis.com
Mobile screenshot of vorbis.com
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

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

Performance

97

Core Web Vitals

Weight

First Contentful Paint
998 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
190 KB
5 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
University of Oregon

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Web Servers

1
Nginx

SEO Analysis

D51/100
14
8
2
Meta Tags4/15
Content11/12
Headings7/8
Technical11/21
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
V
vorbis.comvorbis.com

Xiph Directory (BETA) — Index

No description available for this page.

Title Length29 chars

Recommended: 50-60 chars (~173px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (2/2) — critical for accessibility and SEO

10 issues found

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Local SEO

Local Search Readiness

3/100
Poor
1 14 2

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

Sponsored

AI & LLM Readiness

F38/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
0/25
Citation
6/25

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
nav
Text ratio:13%
Words:634
Token eff.:Optimal
Sections/1K:1.6
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary15w
Descriptive Headingsavg 2w
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...
Upgrade to view recommendations

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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.
A
80/100
11
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
57/100
A+
24 mg
CO₂e / view
189.8 KB
Page Weight
95%
Cleaner Than
New Visitor
27 mg
vs
Returning (cached)
13 mg
Annual (10K/mo)
2.8 kg
Emission Segments
Data Center
5 mg
Network
6 mg
Device
13 mg
Resource Breakdown
Images
29.3 KB
CSS
156.1 KB
HTML
4.5 KB
Green Hosting Not Verified
University of Oregon
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical

No SSL

No WAF

N/A

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Tue, 28 Apr 2026 16:57:11 GMT
server
nginx
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

vorbis.com

Domain Age
26y 7m

Created

01.10.1999

Expires

01.10.2026

Last Updated

02.04.2026

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.
C
67/100
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.
Viewport
width=device-width, initial-scale=1, shrink-to-fit=no
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial
74/100
Readability
/30
24/30

16px · LH 1.50

Hierarchy
/20
13/20

2.5x ratio

WCAG
/25
17/25

3.98:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

-apple-system

Sans40px

Body Font

-apple-system

Sans16px

Contrast Ratio

3.98:1

13 issues

Reading Comfort

~34 CPL

Narrow lines
40px
h1
32px
h2
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 43/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 4.0:1).

❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

Flesch 43

Color Palette

6 unique colors
11.47:1 AAA Light
#ffffff
Background· 85.30000000000001%
#353a40
Secondary· 5.3%
#29495c
Primary· 0%
#576575
Secondary· 1.7%

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

vorbis.com

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

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Last analyzed: 28 Apr 2026 at 16:57

Historical Analysis & Change Tracking