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lem.pl

https://lem.pl· First analyzed 19 May 2026· Updated 19 May 2026
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lem.pl
Desktop screenshot of lem.pl
Mobile screenshot of lem.pl
Mobile

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Hosting Provider

dhosting.pl Sp. z o.o

IP Address

109.95.156.7

Site Location

🇵🇱 Polandvia tld

Server Location

🇵🇱 Warsaw, Poland

ASN

AS48896

Organization

dhosting.pl Sp. z o.o

Server

LiteSpeed

Nameservers

ns1.dhosting.pl.ns2.dhosting.pl.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
269 ms10%
Speed Index
350 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
162 KB
16 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
dhosting.pl Sp. z o.o

Technology Stack

4 Technologies Detected

Analytics

2
Google Analytics
Segment

Fonts

1
Google Fonts

Web Servers

1
LiteSpeed

SEO Analysis

D49/100
12
10
0
Meta Tags12/15
Content3/12
Headings6/8
Technical10/21
E-E-A-T0/7
Images4/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
L
lem.pllem.pl

Stanislaw Lem: the official site

The Official Site of Stanislaw Lem: works | biography | reviews | gallery | bookshelf | forum | Lemopedia. 4 languages: English, Deutsch, Español, Polski.

Title Length32 chars

Recommended: 50-60 chars (~188px / 580px)

Description Length154 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    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

    F27/100
    Bot Access
    20/25
    Machine Read.
    4/25
    Schema Data
    0/25
    Citation
    3/25

    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:6%
    Words:97
    Token eff.:Too Short

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary72w
    Descriptive Headings
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (11)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    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.
    B
    71/100
    9
    Passed
    4
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    11/20
    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
    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.
    2 recommendations
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    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.
    54/100
    A+
    20 mg
    CO₂e / view
    162.1 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    23 mg
    vs
    Returning (cached)
    12 mg
    Annual (10K/mo)
    2.4 kg
    Emission Segments
    Data Center
    5 mg
    Network
    5 mg
    Device
    11 mg
    Resource Breakdown
    JavaScript
    6.6 KB
    Images
    142.2 KB
    CSS
    8.7 KB
    Fonts
    2.1 KB
    HTML
    2.5 KB
    Green Hosting Not Verified
    dhosting.pl Sp. z o.o
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    No WAF

    64d

    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/2+H3

    Valid From

    24.04.2026

    Valid Until

    23.07.2026

    Subject Alternative Names (2)

    lem.plwww.lem.pl

    SHA-256 Fingerprint

    24:D4:80:B9:8B:50:E8:80:2B:83:1B:98:A3:AB:1F:03:0F:6C:EA:77...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...
    content-encoding
    ⚡ Brotli(br)
    content-length
    2264
    content-type
    text/html; charset=UTF-8
    date
    Tue, 19 May 2026 20:54:24 GMT
    server
    LiteSpeed
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (2)

    mx-2.dpoczta.pl
    mx-1.dpoczta.pl

    Domain Information

    lem.pl

    Domain Age
    25y 11m

    Created

    06.06.2000

    Expires

    05.06.2026

    Last Updated

    05.06.2025

    Registrar

    OVH SAS

    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.
    D
    56/100
    Mobile Friendly2 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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Trebuchet

    WCAG Fail
    54/100
    Readability
    /30
    15/30

    14px · LH 1.11

    Hierarchy
    /20
    12/20

    1.67x ratio

    WCAG
    /25
    12/25

    2.17:1 min contrast

    Performance
    /25
    15/25

    2 fonts · 1 req

    Heading Font

    Trebuchet

    Sans24px

    Body Font

    Trebuchet

    Sans14px

    Contrast Ratio

    2.17:1

    8 issues

    Reading Comfort

    Single Font Family

    left aligned
    24px
    h1
    14px
    p

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

    ⚠️ Tight line spacing (1.11). Increase to 1.4–1.6 for better readability.

    ❌ Low contrast: 8 elements fail WCAG AA (min 2.2:1). Increase text/background contrast.

    ✅ Lean font stack: 2 font families keeps load times fast.

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

    GGoogle FontsBuy on MyFonts

    Color Palette

    8 unique colors
    11.72:1 AAA Light
    #ffffff
    Text· 65.9%
    #37383b
    Other· 4.6%
    #79a8a8
    Primary· 7.199999999999999%
    #c99c94
    Secondary· 3.2%
    #c77e6b
    Secondary· 2.8%

    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

    Sponsored

    Scripts & Styles

    3 Resources

    2
    Scripts
    1
    Styles
    2
    Async
    0
    Defer

    Top Script Sources

    ajax.googleapis.com(1)google-analytics.com(1)

    Website Identity

    lem.pl

    25 years old
    Location detected: 🇵🇱 Polandvia tld
    OVH SAS

    Sponsored

    Last analyzed: 19 May 2026 at 20:54

    Historical Analysis & Change Tracking

    lem.pl Technology Stack - Built With Google Fonts, Google Analytics, LiteSpeed, Segment | StackOptic | StackOptic