opendataday.org

https://opendataday.org· First analyzed 14 May 2026· Updated 14 May 2026

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opendataday.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.67.142.202

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

carl.ns.cloudflare.com.dana.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.6 s10%

Speed Index

2.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

594 KB

38 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Platform

GitHub Pages

CDN

Cloudflare

Technology Stack

5 Technologies Detected

Libraries

Other

CSS Frameworks

Analytics

CDN

SEO Analysis

C64/100

Meta Tags15/15

Content10/12

Headings8/8

Technical8/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

opendataday.orgopendataday.org

Celebrate #opendata where you are — Open Data Day 2026

Join the annual celebration of open data all over the world, when communities gather to reach out to new people and build new solutions using open data.

Title Length54 chars

Recommended: 50-60 chars (~338px / 580px)

Description Length152 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (34/36) — critical for accessibility and SEO

8 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.

Sponsored

AI & LLM Readiness

D41/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

0/25

Citation

8/25

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

navheader/footer

Text ratio:2%

Words:1,071

Token eff.:Optimal

Sections/1K:10.3

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary51w

Descriptive Headingsavg 2.5w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

77/100

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

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

6/15

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.

60/100

60 mg

CO₂e / view

593.5 KB

Page Weight

80%

Cleaner Than

New Visitor

69 mg

Returning (cached)

34 mg

Annual (10K/mo)

7.2 kg

Emission Segments

Data Center

3 mg

Network

18 mg

Device

39 mg

Resource Breakdown

JavaScript

13.2 KB

Images

373.2 KB

CSS

28.4 KB

HTML

178.8 KB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

WAF

81d

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)

opendataday.org*.opendataday.org

SHA-256 Fingerprint

0E:F7:26:6B:67:63:ED:93:54:7A:96:B1:43:BC:7B:49:70:9D:78:93...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin

age

alt-svc

h3=":443"; ma=86400

cache-control

🟡 600s(max-age=600)

cf-cache-status

DYNAMIC

cf-ray

9fb80bf75e07fa9e-SJC

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

opendataday.org

Domain Age

15y 6m

Created

29.10.2010

Expires

29.10.2030

Last Updated

03.08.2021

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.

63/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

HK Grotesk

WCAG Partial

73/100

Readability

/30

24/30

19px · LH 1.50

Hierarchy

/20

19/20

5.06x ratio · ✓ H1→H6

WCAG

/25

14/25

1.61:1 min contrast

Performance

/25

16/25

1 font

Heading Font

HK Grotesk

Sans97px

Body Font

HK Grotesk

Sans19px

Contrast Ratio

1.61:1

4 issues

Reading Comfort

~39 CPL

Narrow lines

97px

48px

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 36/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.6:1).

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

✅ Strong hierarchy: Headlines are 5.1x larger than body text.

Buy on MyFontsFlesch 36

Color Palette

10 unique colors

17.4:1 AAA Light

#ffffff

Background· 16.099999999999998%

#1a1a1a

Text· 11.3%

#01d1ff

Primary· 47.9%

#e2ff3f

Accent· 6.6%

#b990c0

Secondary· 6.4%

#61ebf2

Accent· 4.6%

#0fb3cf

Accent· 1.8%

#d3eea2

Accent· 0.8%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

PlausibleSMB

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js(3)plausible.io(1)code.jquery.com(1)unpkg.com(1)a.okfn.org(1)

Website Identity

opendataday.org

15 years old

Location detected: 🇨🇦 Canadavia ip

Tucows Domains Inc.

Social Profiles

GitHub

Sponsored

Last analyzed: 14 May 2026 at 07:04

Historical Analysis & Change Tracking