testdriven.io

https://testdriven.io· First analyzed 16 May 2026· Updated 16 May 2026

Export

testdriven.io

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.21.57.88

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

sara.ns.cloudflare.com.sam.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

670 ms10%

Speed Index

871 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

428 KB

61 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

10 Technologies Detected

CSS Frameworks

Analytics

Frameworks

Libraries

Icon Libraries

Tag Managers

Email Marketing

CDN

SEO Analysis

B78/100

Meta Tags8/15

Content12/12

Headings7/8

Technical19/25

E-E-A-T5/7

Images4/7

Links5/5

URL5/5

Social4/5

Freshness2/4

Mobile4/4

Indexability3/3

testdriven.iotestdriven.io

Test-Driven Development, Microservices, Web Development Courses | T...

Learn how to build, test, and deploy microservices with our web development tutorials powered by Docker, Flask, React, Django, and Angular. View the courses ...

Title truncated. Description truncated.

Title Length79 chars

Recommended: 50-60 chars (~476px / 580px)

Description Length162 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (79 chars, ~476px). Will be truncated in search results.

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

755 URLs

robots.txt

11 rules

Sitemap reference found

Local SEO

Local Search Readiness

12/100

Poor

3 14

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

Sponsored

AI & LLM Readiness

D52/100

Bot Access

19/25

Machine Read.

13/25

Schema Data

3/25

Citation

17/25

AI Bot Access

13/14 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

blockquotesnavheader/footer

Text ratio:19%

Words:1,218

Token eff.:Optimal

Sections/1K:10.7

Depth:3/5

Structured Data

1 JSON-LD

Organization×1.1

sameAs entity links

Citation Readiness

Opening Summary22w

Descriptive Headingsavg 6w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (5)

AI readiness recommendation preview...

Upgrade to view recommendations

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.

72/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

17/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

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

6/15

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.

52/100

43 mg

CO₂e / view

427.9 KB

Page Weight

90%

Cleaner Than

New Visitor

49 mg

Returning (cached)

25 mg

Annual (10K/mo)

5.2 kg

Emission Segments

Data Center

2 mg

Network

13 mg

Device

28 mg

Resource Breakdown

JavaScript

148.1 KB

Images

229.4 KB

CSS

39.7 KB

HTML

10.7 KB

Green Hosting Verified

Cloudflare

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

69%Fair

Interactive

HTTPS

WAF

80d

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

06.05.2026

Valid Until

04.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

testdriven.io*.testdriven.io

SHA-256 Fingerprint

78:07:CF:F8:54:70:A2:B3:D7:5D:A2:F7:C2:DA:03:E5:83:C2:BD:EB...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray

9fc65ace3aa86b90-EWR

content-encoding

zstd

content-type

text/html; charset=utf-8

cross-origin-opener-policy

same-origin

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx2.mailchannels.net

mx1.mailchannels.net

Domain Information

testdriven.io

Domain Age

9y 6m

Created

05.11.2016

Expires

05.11.2026

Last Updated

09.10.2025

Registrar

eNom, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

47/100

Not Mobile Friendly1 breakpoint

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, maximum-scale=1, user-scalable=no, viewport-fit=cover

4 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial

81/100

Readability

/30

26/30

19px · LH 1.50

Hierarchy

/20

19/20

2.73x ratio · ✓ H1→H6

WCAG

/25

14/25

1:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

-apple-system

Sans51px

Body Font

-apple-system

Sans19px

Contrast Ratio

1:1

25 issues

Reading Comfort

~39 CPL

Narrow lines

51px

44px

20px

26px

19px

✅ Excellent readability: 19px 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: 25 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 2.7x larger than body text.

Flesch 48

Color Palette

6 unique colors

11.47:1 AAA Dark

#353a40

Text· 67.20000000000002%

#ffffff

Background· 23.499999999999996%

#c7d0d2

Secondary· 2.1%

Business & Marketing Stack

5 Tools Detected

Enterprise

Marketing Automation

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)local(3)connect.facebook.net(2)platform.twitter.com(2)google-analytics.com(1)

Website Identity

TestDriven.io

Organization

9 years old

Location detected: 🇨🇦 Canadavia ip

eNom, LLCen

Social Profiles

X (Twitter)LinkedIn GitHub

Sponsored

Last analyzed: 16 May 2026 at 00:44

Historical Analysis & Change Tracking