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fmi.fi

https://fmi.fi· First analyzed 30 Apr 2026· Updated 30 Apr 2026
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fmi.fi
Desktop screenshot of fmi.fi
Mobile screenshot of fmi.fi
Mobile

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Hosting Provider

Finnish Meteorological institute

IP Address

193.166.221.20

Site Location

🇫🇮 Finlandvia phone

Server Location

🇫🇮 Lahti, Finland

ASN

AS1741

Organization

Finnish Meteorological institute

CDN

CloudFront

Nameservers

nsgate.fmi.fi.ns-secondary.funet.fi.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
520 ms10%
Speed Index
676 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.4 MB
64 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Hybrid
⚙️ SSR
Frontend
Framework
Nuxt.js
Styling
Tailwind CSS
CMS
Contentful
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Technology Stack

5 Technologies Detected

Meta Frameworks

1
Nuxt.js

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Analytics

1
Matomo

SEO Analysis

C65/100
21
5
1
Meta Tags8/15
Content8/12
Headings8/8
Technical12/21
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
F
fmi.fifmi.fi

Etusivu - Ilmatieteen laitos

Ajankohtainen sääennuste, voimassaolevat varoitukset ja mennyt sää. Tutkimustietoa ilmastosta, merestä ja avaruudesta.

Title Length28 chars

Recommended: 50-60 chars (~163px / 580px)

Description Length118 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (12/21) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

10 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100
Poor
3 12 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

D40/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
13/25

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:372
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary296w
Descriptive Headingsavg 4.3w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
A
80/100
15
Passed
4
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
7/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
8/15
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.
48/100
C
172 mg
CO₂e / view
1.4 MB
Page Weight
60%
Cleaner Than
New Visitor
196 mg
vs
Returning (cached)
98 mg
Annual (10K/mo)
20.6 kg
Emission Segments
Data Center
38 mg
Network
41 mg
Device
92 mg
Resource Breakdown
JavaScript
1.0 MB
Images
219.7 KB
CSS
9.8 KB
HTML
113.2 KB
Other
10.9 KB
Green Hosting Not Verified
Finnish Meteorological institute
5 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

41%Poor
Interactive

HTTPS

WAF

175d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

08.04.2026

Valid Until

22.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

*.ilmatieteenlaitos.fi

SHA-256 Fingerprint

6D:53:75:46:F8:FE:D2:79:56:10:8E:7C:E9:EF:C3:DB:7D:1E:E0:65...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 300s(public, max-age=300)
content-encoding
📦 Gzip(gzip)
content-type
text/html;charset=utf-8
date
Thu, 30 Apr 2026 17:28:07 GMT
strict-transport-security
max-age=31536000; includeSubDomains; preload
vary
Accept-Encoding
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.valtori.fi

Domain Information

fmi.fi

Domain Age
35y 4m

Created

01.01.1991

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

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.
A
85/100
Mobile Friendly21 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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Roboto

WCAG Partial
72/100
Readability
/30
22/30

18px · LH 1.56

Hierarchy
/20
14/20

1.67x ratio · ✓ H1→H6

WCAG
/25
17/25

1:1 min contrast

Performance
/25
19/25

System fonts

Heading Font

Roboto

Sans30px

Body Font

Roboto

Sans18px

Contrast Ratio

1:1

3 issues

Reading Comfort

Single Font Family

left aligned
30px
h1
30px
h2
18px
h3
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 1.0:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

Fluid Type (rem)Flesch 0

Color Palette

6 unique colors
Light
#ffffff
Background· 62.4%
#e7effa
Primary· 14.499999999999998%
#334196
Primary· 6.7%
#1f4f98
Accent· 6.5%
#d3d3de
Secondary· 5.5%
#8099ba
Secondary· 4.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

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

7 Resources

3
Scripts
4
Styles
1
Async
0
Defer

Top Script Sources

local(2)matomo-dev.out.ock.fmi.fi(1)

Website Identity

fmi.fi

+358295391000
35 years old
Location detected: 🇫🇮 Finlandvia phone
fi

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Last analyzed: 30 Apr 2026 at 17:28

Historical Analysis & Change Tracking

fmi.fi Technology Stack - Built With Nuxt.js, Tailwind CSS, Font Awesome, Google Fonts, Matomo | StackOptic | StackOptic