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firstscience.com

https://firstscience.com· First analyzed 29 May 2026· Updated 29 May 2026
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firstscience.com
Desktop screenshot of firstscience.com
Mobile screenshot of firstscience.com
Mobile

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Hosting Provider

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

Web Servers

1

SEO Analysis

D41/100
11
8
4
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
F
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

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.

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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.
D
47/100
6
Passed
6
Critical
0
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...

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
vs
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...
B

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

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

0

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
Privacy Policy
Terms of Service

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.
F
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...

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
p

✅ 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

1

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

1 Resources

1
Scripts
0
Styles
1
Async
0
Defer

Top Script Sources

google-analytics.com(1)

Website Identity

firstscience.com

26 years old
Location detected: 🇳🇱 Netherlandsvia ip
IONOS SE

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Last analyzed: 29 May 2026 at 20:06

Historical Analysis & Change Tracking