rcopen.com

https://rcopen.com· First analyzed 14 May 2026· Updated 14 May 2026

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rcopen.com

Mobile

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

65.21.140.247

Site Location

🇫🇮 Finlandvia ip

Server Location

🇫🇮 Helsinki, Finland

ASN

AS24940

Organization

Hetzner

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

lee.ns.cloudflare.com.iris.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

687 ms10%

Speed Index

893 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

522 KB

12 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Hetzner

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

CSS Frameworks

Analytics

Tag Managers

Web Servers

SEO Analysis

D56/100

Meta Tags4/15

Content10/12

Headings3/8

Technical18/25

E-E-A-T0/7

Images0/7

Links4/5

URL5/5

Social3/5

Freshness2/4

Mobile4/4

Indexability3/3

rcopen.comrcopen.com

RC open forums

No description available for this page.

Title Length14 chars

Recommended: 50-60 chars (~89px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

14 URLs

14 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

D42/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

0/25

Citation

11/25

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:14%

Words:1,321

Token eff.:Optimal

Sections/1K:72.7

Depth:1/5

Structured Data

Microdata

Citation Readiness

Opening Summary56w

Descriptive Headingsavg 2.8w

Canonical URL

Open Graph2/3

Twitter Card2/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

66/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

10/20

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

Forms & Inputs

10/15

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

2/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

5 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.

72/100

53 mg

CO₂e / view

522.2 KB

Page Weight

80%

Cleaner Than

New Visitor

60 mg

Returning (cached)

30 mg

Annual (10K/mo)

6.3 kg

Emission Segments

Data Center

3 mg

Network

16 mg

Device

35 mg

Resource Breakdown

JavaScript

405.7 KB

Images

15.0 KB

CSS

79.2 KB

HTML

20.8 KB

Other

1.5 KB

Green Hosting Verified

Hetzner Online GmbH

GWF Verified

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

56%Poor

Interactive

HTTPS

No WAF

87d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

12.05.2026

Valid Until

10.08.2026

Subject Alternative Names (1)

rcopen.com

SHA-256 Fingerprint

54:C8:CE:4C:79:3B:17:55:51:3F:E9:07:C0:1E:B4:67:E6:D0:F4:55...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 0s(max-age=0, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self';

content-type

text/html; charset=UTF-8

date

Thu, 14 May 2026 06:58:30 GMT

etag

W/"nHQasulRLOfpWbbfQngkTuRM1XU"

Good Warning Issue

Email Infrastructure

Fastmail

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

in1-smtp.messagingengine.com

in2-smtp.messagingengine.com

Domain Information

rcopen.com

Domain Age

13y 2m

Created

13.03.2013

Expires

19.03.2029

Last Updated

18.02.2024

Registrar

Cloudflare, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

72/100

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.

Viewport

width=device-width, initial-scale=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

-apple-system

WCAG Partial

61/100

Readability

/30

22/30

16px · LH 1.50

Hierarchy

/20

8/20

WCAG

/25

12/25

3.54:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

-apple-system

Sans

Body Font

-apple-system

Sans16px

Contrast Ratio

3.54:1

2 issues

Reading Comfort

Single Font Family

left aligned

24px

16px

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

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

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 3.5:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

Flesch 70

Color Palette

5 unique colors

Light

#ffffff

Primary· 71.10000000000001%

#dde6ef

Secondary· 12.3%

#3e76af

Primary· 10.9%

#cacbaa

Secondary· 3.9%

#5483b3

Primary· 1.7%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

5 Resources

Scripts

Styles

Async

Defer

Top Script Sources

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

Website Identity

rcopen.com

13 years old

Location detected: 🇫🇮 Finlandvia ip

Cloudflare, Inc.📧 Fastmail

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Last analyzed: 14 May 2026 at 06:58

Historical Analysis & Change Tracking