clarkandmiller.com

https://clarkandmiller.com· First analyzed 04 Jun 2026· Updated 04 Jun 2026

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clarkandmiller.com

Mobile

Sponsored

Hosting Provider

Google Cloud Platform

cloud.google.com

IP Address

35.214.172.184

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Groningen, Netherlands

ASN

AS15169

Organization

Google Cloud (europe-west4)

Server

Nginx

CDN

Proxy Cache

Nameservers

ns2.siteground.net.ns1.siteground.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

905 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.1 MB

83 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPress

Infrastructure

Hosting

Google Cloud Platform

CDN

Proxy Cache

Technology Stack

24 Technologies Detected

Plugins

Compact Wp Audio Player

WooCommerce

Jquery Collapse O Matic

Mashsharer Official Mailerlite Sign Up Forms Siteorigin Panels H5P Dk Pricr Responsive Pricing Table

Woocommerce Gateway Stripe

Duracelltomi Google Tag Manager

Analytics

Libraries

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Web Servers

SEO Analysis

B77/100

Meta Tags15/15

Content9/12

Headings3/8

Technical20/21

E-E-A-T2/7

Images6/7

Links2/5

URL5/5

Social5/5

Freshness4/4

Mobile3/4

Indexability3/3

clarkandmiller.comclarkandmiller.com

Clark and Miller | Learn English Online - English Courses

Are you looking to improve your English? Learn English online with Clark and Miller! We offer free and premium online English courses.

Title Length57 chars

Recommended: 50-60 chars (~334px / 580px)

Description Length134 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

7 issues found

Upgrade to view details

Local SEO

Local Search Readiness

19/100

Poor

5 13

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

Sponsored

AI & LLM Readiness

D54/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

8/25

Citation

16/25

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

nav

Text ratio:2%

Words:540

Token eff.:Optimal

Sections/1K:3.7

Depth:1/5

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary29w

Descriptive Headingsavg 3w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (7)

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.

78/100

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

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

15/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

10/15

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.

63/100

117 mg

CO₂e / view

1.1 MB

Page Weight

70%

Cleaner Than

New Visitor

133 mg

Returning (cached)

67 mg

Annual (10K/mo)

14.0 kg

Emission Segments

Data Center

6 mg

Network

34 mg

Device

77 mg

Resource Breakdown

JavaScript

130.5 KB

Images

850.1 KB

CSS

150.0 KB

Fonts

930 B

HTML

22.8 KB

Other

832 B

Green Hosting Verified

Google Cloud

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

76d

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

21.05.2026

Valid Until

19.08.2026

Subject Alternative Names (2)

*.clarkandmiller.comclarkandmiller.com

SHA-256 Fingerprint

42:28:EA:D6:52:CF:80:25:87:8A:69:D5:E6:E2:5B:6B:F6:8A:13:0A...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔵 1 Week(max-age=864000)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Thu, 04 Jun 2026 02:49:03 GMT

expires

Tue, 09 Jun 2026 21:03:34 GMT

host-header

8441280b0c35cbc1147f8ba998a563a7

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

mx10.antispam.mailspamprotection.com

mx20.antispam.mailspamprotection.com

mx30.antispam.mailspamprotection.com

Domain Information

clarkandmiller.com

Domain Age

10y 4m

Created

25.01.2016

Expires

25.01.2027

Last Updated

10.01.2026

Registrar

Tucows Domains Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

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.

80/100

Mobile Friendly87 breakpoints

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Source Sans Pro + -apple-system

WCAG Partial

71/100

Readability

/30

25/30

18px · LH 1.44

Hierarchy

/20

6/20

WCAG

/25

18/25

1.08:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

Source Sans Pro

Sans

Body Font

-apple-system

Sans18px

Contrast Ratio

1.08:1

6 issues

Reading Comfort

~35 CPL

Narrow lines

24px

32px

16px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.44 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.1:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

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

GGoogle Fonts Buy on MyFontsFluid Type (rem)Flesch 51

Color Palette

6 unique colors

3.66:1 AA Large Light

#ffffff

Background· 74.2%

#868589

Other· 4.4%

#01102f

Primary· 11.999999999999998%

#0b0619

Accent· 2.1%

#492f3d

Secondary· 2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

clarkandmiller.com(14)googletagmanager.com(2)static.mailerlite.com(2)google-analytics.com(1)app.mailerlite.com(1)

Website Identity

Clark and Miller Online English Lessons

Organization

Are you looking to improve your English? Learn English online with Clark and Miller! We offer free and premium online English courses.

www.clarkandmiller.com/

10 years old

Location detected: 🇳🇱 Netherlandsvia ip

Tucows Domains Inc.en-US

Sponsored

Last analyzed: 04 Jun 2026 at 02:49

Historical Analysis & Change Tracking