mainlesson.com

https://mainlesson.com· First analyzed 20 May 2026· Updated 20 May 2026

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mainlesson.com

Mobile

Sponsored

Hosting Provider

Smartt Inc

IP Address

69.31.189.61

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Vancouver, Canada

ASN

AS30295

Organization

Smartt Inc

Server

Nginx

Nameservers

ktk2.smartt.com.ktk1.smartt.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

424 ms10%

Speed Index

551 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

20 KB

3 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Smartt Inc

Technology Stack

1 Technologies Detected

Web Servers

Nginx

SEO Analysis

D45/100

Meta Tags9/15

Content11/12

Headings3/8

Technical4/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

mainlesson.commainlesson.com

The Baldwin Online Children's Literature Project...Bringing Yesterd...

The Baldwin Online Children's Literature Project publishes online editions of classic children's books from the golden age of children's literature (1880-1922).

Title truncated.

Title Length100 chars

Recommended: 50-60 chars (~583px / 580px)

Description Length160 chars

Recommended: 120-160 chars

Issues (3)

• Title is too long (100 chars, ~583px). Will be truncated in search results.
• Most images missing alt text (7/7) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

14 issues found

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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

F35/100

Bot Access

20/25

Machine Read.

9/25

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

Text ratio:20%

Words:584

Token eff.:Optimal

Sections/1K:1.7

Structured Data

No Schema

Citation Readiness

Opening Summary62w

Descriptive Headingsavg 1w

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.

51/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

6/20

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.

50/100

A+

2 mg

CO₂e / view

19.6 KB

Page Weight

95%

Cleaner Than

New Visitor

3 mg

Returning (cached)

1 mg

Annual (10K/mo)

288 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

1 mg

Resource Breakdown

Images

2.2 KB

HTML

17.4 KB

Green Hosting Not Verified

Smartt Inc

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

42d

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

03.04.2026

Valid Until

02.07.2026

Subject Alternative Names (2)

mainlesson.comwww.mainlesson.com

SHA-256 Fingerprint

9F:6B:5F:D2:5F:E4:4C:55:C5:CF:2F:1C:62:C2:D3:BF:E4:53:16:1B...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

content-length

17524

content-type

text/html

date

Wed, 20 May 2026 19:06:09 GMT

last-modified

Fri, 14 Dec 2018 03:35:52 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail01.smartt.com

Domain Information

mainlesson.com

Domain Age

27y 3m

Created

24.02.1999

Expires

24.02.2029

Last Updated

08.09.2022

Registrar

GoDaddy.com, 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.

31/100

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...

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Typography & Readability

Times New Roman

WCAG Partial

60/100

Readability

/30

19/30

19px · LH --

Hierarchy

/20

10/20

1.67x ratio

WCAG

/25

17/25

2.47:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif19px

Contrast Ratio

2.47:1

9 issues

Reading Comfort

Single Font Family

left aligned

32px

19px

✅ Excellent readability: 19px body text is ideal for all devices.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 2.5:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

✅ 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 58

Color Palette

6 unique colors

Light

#ffffff

Background· 58.699999999999996%

#6766cc

Primary· 20.8%

#a8bcd0

Secondary· 7.1%

#e6edec

Secondary· 5.1%

#8682cc

Secondary· 2.4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Website Identity

mainlesson.com

27 years old

Location detected: 🇨🇦 Canadavia ip

GoDaddy.com, LLC

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Last analyzed: 20 May 2026 at 19:06

Historical Analysis & Change Tracking