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sdkrashen.com

https://sdkrashen.com· First analyzed 24 May 2026· Updated 24 May 2026
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sdkrashen.com
Desktop screenshot of sdkrashen.com
Mobile screenshot of sdkrashen.com
Mobile

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Hosting Provider

TotalChoice Hosting, LLC

IP Address

208.76.80.81

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS16556

Organization

TotalChoice Hosting, LLC

Server

Apache

Nameservers

ns1.snhdns.com.ns2.snhdns.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
476 ms10%
Speed Index
619 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
12 KB
10 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
TotalChoice Hosting, LLC

Technology Stack

1 Technologies Detected

Web Servers

1
Apache

SEO Analysis

D42/100
10
9
3
Meta Tags7/15
Content9/12
Headings0/8
Technical5/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
S
sdkrashen.comsdkrashen.com

Books and Articles by Stephen D Krashen

No description available for this page.

Title Length39 chars

Recommended: 50-60 chars (~237px / 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)

12 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.

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AI & LLM Readiness

F29/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
Citation
1/25

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:15%
Words:473
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary
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...
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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...
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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.
56/100
A+
1 mg
CO₂e / view
11.6 KB
Page Weight
95%
Cleaner Than
New Visitor
2 mg
vs
Returning (cached)
<0.001 g
Annual (10K/mo)
168 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
<0.001 g
Resource Breakdown
JavaScript
1.5 KB
Images
5.8 KB
CSS
1006 B
HTML
3.3 KB
Green Hosting Not Verified
TotalChoice Hosting, LLC
4 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

77d

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

11.05.2026

Valid Until

09.08.2026

Subject Alternative Names (9)

autodiscover.sdkrashen.comcpanel.sdkrashen.comcpcalendars.sdkrashen.comcpcontacts.sdkrashen.commail.sdkrashen.comsdkrashen.comwebdisk.sdkrashen.comwebmail.sdkrashen.com+1 more

SHA-256 Fingerprint

74:9D:D4:00:8B:2A:BA:5B:33:AC:CB:01:1E:DC:D9:DB:EA:D5:99:2A...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
content-encoding
⚡ Brotli(br)
content-length
3028
content-type
text/html; charset=UTF-8
date
Sun, 24 May 2026 12:58:01 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

MX Records (1)

sdkrashen.com

Domain Information

sdkrashen.com

Domain Age
23y 3m

Created

17.02.2003

Expires

17.02.2027

Last Updated

09.02.2025

Registrar

DNC Holdings, 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.
D
40/100
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 AAA
62/100
Readability
/30
19/30

16px · LH --

Hierarchy
/20
8/20
WCAG
/25
21/25

14.03:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Body Font

Times New Roman

Serif16px

Contrast Ratio

14.03:1

WCAG AAA (≥7:1)

Reading Comfort

Single Family

left aligned

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

❌ Very complex text: Flesch score 11/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 14.0:1).

✅ 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 11

Color Palette

9 unique colors
3.97:1 AA Large Light
#ffffff
Background· 50.3%
#7f7f88
Other· 4.4%
#010066
Primary· 20%
#2f2e94
Accent· 4.8%

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

4 Resources

4
Scripts
0
Styles
1
Async
0
Defer

Top Script Sources

engine(2)gstatic.com(1)google.com(1)

Website Identity

sdkrashen.com

23 years old
Location detected: 🇺🇸 United Statesvia ip
DNC Holdings, Inc.

Sponsored

Last analyzed: 24 May 2026 at 12:58

Historical Analysis & Change Tracking