strom.ch

https://strom.ch· First analyzed 29 May 2026· Updated 29 May 2026

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strom.ch

Mobile

Sponsored

Hosting Provider

Infomaniak Cloud

IP Address

83.228.209.244

Site Location

🇨🇭 Switzerlandvia tld

Server Location

🇨🇭 Geneva, Switzerland

ASN

AS29222

Organization

Infomaniak Cloud

Server

Nginx

Nameservers

ns-cloud-b2.googledomains.com.ns-cloud-b1.googledomains.com.ns-cloud-b4.googledomains.com.ns-cloud-b3.googledomains.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

748 ms10%

Speed Index

972 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

8.8 MB

89 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

7 Technologies Detected

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Analytics

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

B71/100

Meta Tags14/15

Content11/12

Headings3/8

Technical19/25

E-E-A-T0/7

Images3/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

strom.chstrom.ch

Verband Schweizerischer Elektrizitätsunternehmen | VSE

Der VSE (Verband Schweizerischer Elektrizitätsunternehmen) ist der Dachverband, die Bildungsstätte und das politische Sprachrohr der schweizerischen Elektriz...

Description truncated.

Title Length54 chars

Recommended: 50-60 chars (~327px / 580px)

Description Length170 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (33/40) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,151 URLs

robots.txt

53 rules

Local SEO

Local Search Readiness

14/100

Poor

4 12 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D46/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

16/25

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

nav

Text ratio:6%

Words:1,453

Token eff.:Optimal

Sections/1K:4.1

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary137w

Descriptive Headingsavg 5w

Canonical URL

Open Graph3/3

Twitter Card1/3

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.

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

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

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.

45/100

909 mg

CO₂e / view

8.8 MB

Page Weight

Cleaner Than

New Visitor

1.04 g

Returning (cached)

519 mg

Annual (10K/mo)

109.0 kg

Emission Segments

Data Center

45 mg

Network

267 mg

Device

597 mg

Resource Breakdown

JavaScript

74.4 KB

Images

8.6 MB

CSS

94.5 KB

HTML

21.6 KB

Other

302 B

Green Hosting Verified

Infomaniak

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

86%Very Good

Interactive

HTTPS

No WAF

34d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.04.2026

Valid Until

03.07.2026

Subject Alternative Names (4)

legacy.strom.chn.strom.chstrom.chwww.strom.ch

SHA-256 Fingerprint

23:59:72:C3:2F:14:A6:C3:50:07:72:16:B6:9B:2F:15:5B:D3:06:C0...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 900s(max-age=900, public, s-maxage=86400, stale-if-error=1800, st...)

content-encoding

📦 Gzip(gzip)

content-language

content-security-policy

script-src 'self' 'unsafe-inline' 'unsafe-eval' https://www....

content-type

text/html; charset=UTF-8

date

Fri, 29 May 2026 12:45:39 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

MX Records (1)

strom-ch.mail.protection.outlook.com

Domain Information

strom.ch

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

56/100

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

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

alwyn-new-web

WCAG Partial

53/100

Readability

/30

16/30

14px · LH 1.71

Hierarchy

/20

8/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

15/25

1 font · 1 req

Heading Font

alwyn-new-web

Sans

Body Font

alwyn-new-web

Sans14px

Contrast Ratio

1:1

19 issues

Reading Comfort

~34 CPL

Narrow lines

60px

40px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

❌ Very complex text: Flesch score 13/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 19 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

AAdobe Fonts Buy on MyFontsFlesch 13

Color Palette

12 unique colors

6.76:1 AA Light

#ffffff

Background· 25.799999999999997%

#615869

Secondary· 6.1%

#f59942

Primary· 13.7%

#253d95

Accent· 12%

#19224f

Accent· 8.6%

#2c396f

Secondary· 6.9%

#13122b

Secondary· 6.2%

#384a82

Secondary· 6%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(2)local(2)google-analytics.com(1)

Website Identity

strom.ch

info@strom.ch

Location detected: 🇨🇭 Switzerlandvia tld

📧 Microsoft 365de

Social Profiles

X (Twitter)LinkedIn YouTube

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Last analyzed: 29 May 2026 at 16:29

Historical Analysis & Change Tracking