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apress.com

https://apress.com· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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apress.com
Desktop screenshot of apress.com
Mobile screenshot of apress.com
Mobile

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

199.232.172.95

Site Location

🇸🇪 Swedenvia ip

Server Location

🇸🇪 Stockholm, Sweden

ASN

AS54113

Organization

Fastly, Inc.

Server

Oscar Platform 0.2173.0

CDN

Fastly

Nameservers

pdns1.ultradns.net.pdns2.ultradns.net.pdns3.ultradns.org.pdns4.ultradns.org.+2 more

Performance

99

Core Web Vitals

Weight

First Contentful Paint
789 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
338 KB
41 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Fastly, Inc.
CDN
Fastly

Technology Stack

6 Technologies Detected

Frameworks

1
Angular

Libraries

1
jQueryv1.9.1

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

SEO Analysis

C64/100
18
9
0
Meta Tags9/15
Content10/12
Headings6/8
Technical16/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
A
apress.comapress.com

Apress

We build strong partnerships with our authors. Apress offers authors the chance to work with a publisher with the marketing, distribution, and

Title Length6 chars

Recommended: 50-60 chars (~37px / 580px)

Description Length142 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1 URLs

    robots.txt

    10 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    10/100
    Poor
    3 13 2

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

    Sponsored

    AI & LLM Readiness

    D44/100
    Bot Access
    20/25
    Machine Read.
    9/25
    Schema Data
    0/25
    Citation
    15/25

    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
    data-nosnippet

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    navheader/footer
    Text ratio:7%
    Words:925
    Token eff.:Optimal
    Sections/1K:22.7
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary43w
    Descriptive Headingsavg 5.5w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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
    77/100
    11
    Passed
    5
    Critical
    0
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    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
    11/15
    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.
    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.
    66/100
    A+
    34 mg
    CO₂e / view
    337.8 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    39 mg
    vs
    Returning (cached)
    20 mg
    Annual (10K/mo)
    4.1 kg
    Emission Segments
    Data Center
    2 mg
    Network
    10 mg
    Device
    22 mg
    Resource Breakdown
    JavaScript
    133.5 KB
    Images
    6.4 KB
    CSS
    189.4 KB
    HTML
    8.6 KB
    Green Hosting Verified
    Fastly, Inc.
    Provider Match
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    No WAF

    50d

    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

    18.03.2026

    Valid Until

    16.06.2026

    Subject Alternative Names (1)

    *.apress.com

    SHA-256 Fingerprint

    D4:99:AD:FA:03:FD:04:CC:25:7D:55:19:DB:72:35:1E:64:25:4C:FD...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    0
    alt-svc
    h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=864...
    cache-control
    🔴 No Cache(no-cache, no-store)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html;charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    75

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (2)

    mxb-002c5801.gslb.pphosted.com
    mxa-002c5801.gslb.pphosted.com

    Domain Information

    apress.com

    Domain Age
    28y 2m

    Created

    23.02.1998

    Expires

    22.02.2027

    Last Updated

    16.02.2026

    Registrar

    EuroDNS S.A.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    CookieConsent.js

    Cookie Consent Banner
    CookieConsent.js
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: CookieConsent.js
    Privacy policy page linked

    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.
    C
    69/100
    Mobile Friendly32 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

    Encode Sans Condensed Semi Bold + Encode Sans Regular

    WCAG Partial
    55/100
    Readability
    /30
    19/30

    14px · LH 1.57

    Hierarchy
    /20
    14/20

    2.43x ratio

    WCAG
    /25
    13/25

    1.69:1 min contrast

    Performance
    /25
    9/25

    3 fonts · 6 req

    Heading Font

    Encode Sans Condensed Semi Bold

    Mono34px

    Body Font

    Encode Sans Regular

    Mono14px

    Contrast Ratio

    1.69:1

    1 issue

    Reading Comfort

    ~41 CPL

    Narrow lines
    34px
    h1
    26px
    h2
    24px
    h3
    14px
    p

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

    ✅ Optimal line spacing: 1.57 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 35/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.7:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 2.4x larger than body text.

    Buy on MyFontsFlesch 35

    Color Palette

    11 unique colors
    4.68:1 AA Light
    #8c8d82
    Other· 8.2%
    #232323
    Text· 8%
    #00324b
    Accent· 35.800000000000004%
    #433b1c
    Secondary· 8.5%
    #827d68
    Secondary· 6.2%
    #191609
    Primary· 6.1%
    #6f684e
    Secondary· 4.4%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    13 Resources

    10
    Scripts
    3
    Styles
    3
    Async
    2
    Defer

    Top Script Sources

    local(5)googletagmanager.com(1)gstatic.com(1)sgtm.springernature.com(1)cmp.apress.com(1)

    Website Identity

    apress.com

    28 years old
    Location detected: 🇸🇪 Swedenvia ip
    EuroDNS S.A.en

    Sponsored

    Last analyzed: 26 Apr 2026 at 13:39

    Historical Analysis & Change Tracking