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retrosheet.org

https://retrosheet.org· First analyzed 13 May 2026· Updated 13 May 2026
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retrosheet.org
Desktop screenshot of retrosheet.org
Mobile screenshot of retrosheet.org
Mobile

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Hosting Provider

Catalog.com

IP Address

216.57.231.121

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Oklahoma City, United States

ASN

AS7258

Organization

Catalog.com

Server

Apache

Nameservers

ns1.webhero.com.ns3.webhero.com.ns2.webhero.com.

Performance

91

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
9 KB
4 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Catalog.com

Technology Stack

2 Technologies Detected

Web Servers

1
Apachev2.4.6

Languages

1
PHPv8.1.29

SEO Analysis

D42/100
11
10
3
Meta Tags4/15
Content12/12
Headings0/8
Technical6/25
E-E-A-T0/7
Images4/7
Links4/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
R
retrosheet.orgretrosheet.org

Retrosheet

No description available for this page.

Title Length10 chars

Recommended: 50-60 chars (~62px / 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
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

13 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

5 rules

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

F32/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
0/25
Citation
2/25

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:36%
Words:529
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary171w
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 (12)
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.
C
63/100
7
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
3/20
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.
3 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.
50/100
A+
1 mg
CO₂e / view
8.6 KB
Page Weight
95%
Cleaner Than
New Visitor
1 mg
vs
Returning (cached)
<0.001 g
Annual (10K/mo)
132 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
<0.001 g
Resource Breakdown
HTML
8.6 KB
Green Hosting Not Verified
Catalog.com
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

150d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

26.03.2026

Valid Until

10.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

retrosheet.orgwww.retrosheet.org

SHA-256 Fingerprint

37:FF:06:47:BF:E6:E3:D4:0F:F6:99:3F:DB:64:48:52:39:67:22:7F...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
age
431
connection
Keep-Alive
content-length
8549
content-type
text/html; charset=UTF-8
date
Wed, 13 May 2026 01:35:52 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx2.webhero.com
mx1.webhero.com

Domain Information

retrosheet.org

Domain Age
29y 3m

Created

20.01.1997

Expires

21.01.2027

Last Updated

25.01.2026

Registrar

Webhero, Inc.

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
32/100
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

Times New Roman

WCAG AA
70/100
Readability
/30
24/30

16px · LH --

Hierarchy
/20
10/20
WCAG
/25
22/25

6.48:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Body Font

Times New Roman

Serif16px

Contrast Ratio

6.48:1

WCAG AA (≥4.5:1)

Reading Comfort

~46 CPL

Optimal (45–75)
16px
p

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

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.5:1).

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 55

Color Palette

8 unique colors
3.35:1 AA Large Light
#ffffff
Background· 80.9%
#8c8c8f
Other· 3%

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Scripts & Styles

2 Resources

1
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

retrosheet.org(1)

Website Identity

retrosheet.org

29 years old
Location detected: 🇺🇸 United Statesvia ip
Webhero, Inc.

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Last analyzed: 13 May 2026 at 01:36

Historical Analysis & Change Tracking