Asteroid Day is a global awareness campaign where people from around the world come together to learn about asteroids, and how we can protect our planet.

Title Length54 chars

Recommended: 50-60 chars (~329px / 580px)

Description Length153 chars

Recommended: 120-160 chars

Issues (3)

• Very thin content (7 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (148/162) — critical for accessibility and SEO

6 issues found

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Crawlability

Sitemap

Type: index

25 URLs

25 sub-sitemaps

robots.txt

7 rules

Local SEO

Local Search Readiness

23/100

Needs Work

7 10

Sponsored

AI & LLM Readiness

D50/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

11/25

Citation

12/25

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:1%

Words:875

Token eff.:Optimal

Structured Data

7 JSON-LD

Person×1.3Organization×1.1WebSiteVideoObjectBreadcrumbList

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

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.

68/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

11/20

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

12/15

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.

55/100

167 mg

CO₂e / view

1.6 MB

Page Weight

60%

Cleaner Than

New Visitor

191 mg

Returning (cached)

96 mg

Annual (10K/mo)

20.1 kg

Emission Segments

Data Center

8 mg

Network

49 mg

Device

110 mg

Resource Breakdown

JavaScript

843.0 KB

Images

373.5 KB

CSS

363.0 KB

Fonts

2.4 KB

HTML

73.1 KB

Other

1.2 KB

Green Hosting Verified

Fastly, Inc.

Provider Match

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%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

01.05.2026

Valid Until

30.07.2026

Subject Alternative Names (2)

asteroidday.orgwww.asteroidday.org

SHA-256 Fingerprint

D6:51:FD:F6:9D:8D:0D:26:68:AC:7C:B4:C6:37:79:E6:CC:20:B8:58...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

content-encoding

📦 Gzip(gzip)

content-length

74553

content-type

text/html; charset=UTF-8

date

Fri, 15 May 2026 00:12:21 GMT

fastly-restarts

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt2.aspmx.l.google.com

aspmx3.googlemail.com

aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

asteroidday.org

Domain Age

11y 7m

Created

02.10.2014

Expires

02.10.2026

Last Updated

16.11.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

66/100

Mobile Friendly50 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, maximum-scale=1, user-scalable=no

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Montserrat

WCAG Partial

66/100

Readability

/30

23/30

16px · LH 1.50

Hierarchy

/20

7/20

WCAG

/25

18/25

1:1 min contrast

Performance

/25

18/25

1 font · 6 req

Heading Font

Montserrat

Sans

Body Font

Montserrat

Sans16px

Contrast Ratio

1:1

33 issues

Reading Comfort

~39 CPL

Narrow lines

22px

38px

30px

16px

Minor Second

Scale

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 33 elements below WCAG AA threshold (min 1.0:1).

❌ 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).

✅ Lean font stack: 1 font families keeps load times fast.

GGoogle Fonts Buy on MyFontsFluid Type (rem)

Color Palette

10 unique colors

13.05:1 AAA Dark

#000000

Background· 22.299999999999997%

#c6cec6

Secondary· 4.3%

#2f1d09

Accent· 22%

#fffefb

Primary· 8%

#5b3c17

Accent· 7.6%

#472b09

Accent· 6.9%

#536870

Secondary· 6.1%

#c37c2d

Accent· 6%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

GDPR Cookie ConsentFree

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

asteroidday.org(12)connect.facebook.net(3)google-analytics.com(2)googletagmanager.com(2)gstatic.com(1)

Website Identity

Asteroid Day - UN-sanctioned global awareness campaign

VideoObject

Asteroid Day is a global awareness campaign where people from around the world come together to learn about asteroids, and how we can protect our planet.

asteroidday.org/

11 years old

Location detected: 🇨🇦 Canadavia ip

GoDaddy.com, LLC📧 Google Workspaceen-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn

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Last analyzed: 15 May 2026 at 00:12

Historical Analysis & Change Tracking