koreader.rocks

https://koreader.rocks· First analyzed 18 May 2026· Updated 18 May 2026

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koreader.rocks

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.21.92.192

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

noel.ns.cloudflare.com.raquel.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

345 ms10%

Speed Index

448 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

12 KB

8 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Platform

GitHub Pages

CDN

Cloudflare

Technology Stack

1 Technologies Detected

CDN

Cloudflare

SEO Analysis

F34/100

Meta Tags4/15

Content5/12

Headings0/8

Technical11/25

E-E-A-T0/7

Images1/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

koreader.rockskoreader.rocks

KOReader

No description available for this page.

Title Length8 chars

Recommended: 50-60 chars (~52px / 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 (3/4) — critical for accessibility and SEO

14 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

21 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.

Sponsored

AI & LLM Readiness

F25/100

Bot Access

15/25

Machine Read.

6/25

Schema Data

0/25

Citation

4/25

AI Bot Access

6/14 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:7%

Words:52

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary39w

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.

73/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

13/20

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...

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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.

73/100

A+

1 mg

CO₂e / view

12.2 KB

Page Weight

95%

Cleaner Than

New Visitor

1 mg

Returning (cached)

<0.001 g

Annual (10K/mo)

144 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

<0.001 g

Resource Breakdown

Images

9.5 KB

CSS

1.5 KB

HTML

1.2 KB

Green Hosting Verified

Cloudflare

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

WAF

73d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

02.05.2026

Valid Until

31.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

koreader.rocks*.koreader.rocks

SHA-256 Fingerprint

2E:5C:35:D0:38:07:8A:8F:57:84:94:A2:B5:2C:25:36:9C:4F:B0:53...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin

alt-svc

h3=":443"; ma=86400

cache-control

🟡 600s(max-age=600)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9fddf3a7fcded39c-FRA

content-encoding

zstd

Good Warning Issue

Email Infrastructure

Namecheap Email

Score

SPF

DKIM

DMARC

MX Records (2)

mx1.privateemail.com

mx2.privateemail.com

Domain Information

koreader.rocks

Domain Age

10y 4m

Created

02.01.2016

Expires

02.01.2027

Last Updated

04.01.2026

Registrar

NameCheap, 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.

64/100

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

DejaVu Sans

WCAG Partial

69/100

Readability

/30

22/30

16px · LH 1.50

Hierarchy

/20

17/20

2x ratio · ✓ H1→H6

WCAG

/25

16/25

2.61:1 min contrast

Performance

/25

14/25

1 font

Heading Font

DejaVu Sans

Sans32px

Body Font

DejaVu Sans

Sans16px

Contrast Ratio

2.61:1

3 issues

Reading Comfort

~37 CPL

Narrow lines

32px

16px

✅ 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 48/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 2.6:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

Buy on MyFontsFlesch 48

Color Palette

10 unique colors

Light

#ffffff

Background· 37.9%

#f2e8f2

Secondary· 27.6%

#684646

Secondary· 6.3%

#a9fef7

Accent· 6%

#b480ba

Secondary· 6%

#dac9a5

Secondary· 5.9%

#40aea7

Secondary· 4.2%

#8ae1cc

Primary· 3.9%

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Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

chatbase.co(1)

Website Identity

koreader.rocks

10 years old

Location detected: 🇨🇦 Canadavia ip

NameCheap, Inc.📧 Namecheap Email

Social Profiles

GitHub

Sponsored

Last analyzed: 18 May 2026 at 21:28

Historical Analysis & Change Tracking