firstscience.com

https://firstscience.com· First analyzed 29 May 2026· Updated 29 May 2026

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firstscience.com

Mobile

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Hosting Provider

Hostwinds

hostwinds.com

IP Address

192.236.163.234

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS54290

Organization

Hostwinds LLC.

Server

Apache

Nameservers

mdns5.hostwindsdns.com.mdns6.hostwindsdns.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

247 ms10%

Speed Index

321 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

125 KB

11 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Hostwinds

Technology Stack

3 Technologies Detected

Analytics

Google Analytics

Segment

Web Servers

Apache

SEO Analysis

D41/100

Meta Tags8/15

Content10/12

Headings0/8

Technical5/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile1/4

Indexability3/3

firstscience.comfirstscience.com

Science Articles, Science, Nature Poems, Science News, World Time Z...

FirstScience.com offers over 280 science articles in various categories, a science quiz, links, games, science and nature poems, world time zones, latest sci...

Title truncated. Description truncated.

Title Length71 chars

Recommended: 50-60 chars (~427px / 580px)

Description Length187 chars

Recommended: 120-160 chars

Issues (4)

• Title is too long (71 chars, ~427px). Will be truncated in search results.
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (12/15) — critical for accessibility and SEO

12 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

F26/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

0/25

Citation

5/25

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:10%

Words:210

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary15w

Descriptive Headings

Canonical URL

Open Graph3/3

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.

47/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

3/20

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

14/15

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.

4 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.

49/100

A+

15 mg

CO₂e / view

124.6 KB

Page Weight

95%

Cleaner Than

New Visitor

18 mg

Returning (cached)

9 mg

Annual (10K/mo)

1.8 kg

Emission Segments

Data Center

3 mg

Network

4 mg

Device

8 mg

Resource Breakdown

Images

86.9 KB

HTML

37.7 KB

Green Hosting Not Verified

Hostwinds

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

69d

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/1.1

Valid From

09.05.2026

Valid Until

07.08.2026

Subject Alternative Names (2)

firstscience.comwww.firstscience.com

SHA-256 Fingerprint

AF:4C:69:A2:78:89:8A:E6:2B:C6:20:CB:27:A6:30:AF:34:C4:5B:DA...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

Keep-Alive

content-length

38272

content-type

text/html

date

Fri, 29 May 2026 20:05:59 GMT

keep-alive

timeout=5, max=100

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

firstscience.com

Domain Age

26y 7m

Created

19.10.1999

Expires

19.10.2026

Last Updated

09.10.2025

Registrar

IONOS SE

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.

29/100

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.

5 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Times New Roman + Arial

WCAG Partial

71/100

Readability

/30

24/30

16px · LH --

Hierarchy

/20

10/20

WCAG

/25

17/25

1:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Times New Roman

Body Font

Arial

Sans16px

Contrast Ratio

1:1

11 issues

Reading Comfort

~68 CPL

Optimal (45–75)

16px

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

✅ Optimal line length: ~68 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

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

Flesch 51

Color Palette

11 unique colors

Light

#ffffff

Text· 75.7%

#015ee9

Primary· 5.9%

#013fb2

Accent· 4.2%

#847eae

Secondary· 2.4%

#bfc5d1

Secondary· 2.3%

#7d9ed2

Secondary· 2.1%

#1f2e9d

Accent· 1.7%

#52d7f3

Accent· 1.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

google-analytics.com(1)

Website Identity