zfin.org

https://zfin.org· First analyzed 15 May 2026· Updated 15 May 2026

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zfin.org

Mobile

Sponsored

Hosting Provider

University of Oregon

IP Address

184.171.92.30

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Eugene, United States

ASN

AS3582

Organization

University of Oregon

Server

Nginx

Nameservers

ruminant.uoregon.edu.phloem.uoregon.edu.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.7 MB

26 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

University of Oregon

Technology Stack

7 Technologies Detected

CSS Frameworks

Analytics

Libraries

Icon Libraries

Web Servers

SEO Analysis

D47/100

Meta Tags7/15

Content12/12

Headings0/8

Technical12/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile2/4

Indexability3/3

zfin.orgzfin.org

ZFIN The Zebrafish Information Network

No description available for this page.

Title Length38 chars

Recommended: 50-60 chars (~232px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (4/5) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

44 rules

Local SEO

Local Search Readiness

13/100

Poor

4 11 2

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

Sponsored

AI & LLM Readiness

F33/100

Bot Access

20/25

Machine Read.

7/25

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

code blocksheader/footer

Text ratio:32%

Words:3,479

Token eff.:Poor Structure

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary183w

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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Sponsored

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.

50/100

Passed

Critical

Warnings

Images & Alt Text

5/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

12/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

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

4/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

5 recommendations

•Accessibility recommendation preview...

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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.

26/100

341 mg

CO₂e / view

2.7 MB

Page Weight

30%

Cleaner Than

New Visitor

390 mg

Returning (cached)

195 mg

Annual (10K/mo)

41.0 kg

Emission Segments

Data Center

76 mg

Network

82 mg

Device

183 mg

Resource Breakdown

JavaScript

479.0 KB

Images

97.7 KB

CSS

2.1 MB

HTML

10.9 KB

Other

3.4 KB

Green Hosting Not Verified

University of Oregon

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

56%Poor

Interactive

HTTPS

No WAF

202d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Internet2

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

03.12.2025

Valid Until

03.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

zfin.org*.zfin.org

SHA-256 Fingerprint

C6:10:99:5B:EE:76:96:73:37:40:B4:B9:AF:CB:19:60:94:CA:D3:3B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store, max-age=0, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-language

en-GB

content-type

text/html;charset=UTF-8

date

Fri, 15 May 2026 07:05:43 GMT

expires

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxb-000bfd01.gslb.pphosted.com

mxa-000bfd01.gslb.pphosted.com

Domain Information

zfin.org

Domain Age

27 years

Created

13.05.1999

Expires

13.05.2030

Last Updated

23.01.2023

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

61/100

Mobile Friendly1 breakpoint

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Arial

WCAG Partial

65/100

Readability

/30

22/30

14px · LH 1.50

Hierarchy

/20

10/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Arial

Body Font

Arial

Sans14px

Contrast Ratio

1:1

9 issues

Reading Comfort

~70 CPL

Optimal (45–75)

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

✅ Optimal line length: ~70 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 21/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 21

Color Palette

6 unique colors

Light

#ffffff

Background· 49.699999999999996%

#e5ecec

Background· 16.1%

#0d1515

Secondary· 10.3%

#2c4849

Secondary· 8.9%

#1c2e30

Primary· 8.6%

#7da1a4

Secondary· 6.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)cdn.jsdelivr.net(2)googletagmanager.com(1)

Website Identity

zfin.org

zfinadmn@zfin.org

27 years old

5291 University of OregonEugene, OR 97403-5291

Location detected: 🇺🇸 United Statesvia ip

NameCheap, Inc.en

Social Profiles

Bluesky

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Last analyzed: 15 May 2026 at 07:06

Historical Analysis & Change Tracking