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fastmail.com

https://fastmail.com· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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fastmail.com
Desktop screenshot of fastmail.com
Mobile screenshot of fastmail.com
Mobile

Sponsored

Hosting Provider

Fastmail

IP Address

103.168.172.65

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Philadelphia, United States

ASN

AS151847

Organization

Fastmail

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

fmns2.messagingengine.com.fmns1.messagingengine.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
649 ms10%
Speed Index
844 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
987 KB
41 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Fastmail
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

CDN

1
Cloudflare

SEO Analysis

B75/100
23
4
0
Meta Tags14/15
Content10/12
Headings8/8
Technical16/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
F
fastmail.comfastmail.com

Email and calendar made better | Fastmail

Fast, private email hosting for you or your business. More productive, lightning fast, simple and built to save you time.

Title Length41 chars

Recommended: 50-60 chars (~249px / 580px)

Description Length121 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,009 URLs

    robots.txt

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 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

    D47/100
    Bot Access
    20/25
    Machine Read.
    14/25
    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
    blockquotesnavheader/footer
    Text ratio:5%
    Words:843
    Token eff.:Optimal
    Sections/1K:21.4
    Depth:3/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary18w
    Descriptive Headingsavg 3.4w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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.
    A
    80/100
    14
    Passed
    1
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    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
    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
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    9/15
    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.
    64/100
    B
    122 mg
    CO₂e / view
    986.6 KB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    139 mg
    vs
    Returning (cached)
    70 mg
    Annual (10K/mo)
    14.6 kg
    Emission Segments
    Data Center
    27 mg
    Network
    29 mg
    Device
    66 mg
    Resource Breakdown
    JavaScript
    92.9 KB
    Images
    695.8 KB
    CSS
    59.6 KB
    Fonts
    60.3 KB
    HTML
    21.3 KB
    Other
    56.7 KB
    Green Hosting Not Verified
    Fastmail
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    91%Excellent
    Interactive

    HTTPS

    WAF

    71d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    06.04.2026

    Valid Until

    05.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    www.fastmail.com

    SHA-256 Fingerprint

    70:0B:A9:66:00:7E:0D:2D:E6:64:ED:33:FB:B8:64:B5:22:56:BE:39...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ch
    Sec-CH-UA-Arch, Sec-CH-UA-Bitness
    access-control-allow-origin
    *
    alt-svc
    h3=":443"; ma=86400
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    cf-ray🇫🇷 Paris
    9f1d6c0fcae2d5dd-CDG
    content-encoding
    ⚡ Brotli(br)
    Good Warning Issue

    Email Infrastructure

    Fastmail

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (2)

    in2-smtp.messagingengine.com
    in1-smtp.messagingengine.com

    Domain Information

    fastmail.com

    Domain Age
    31y 4m

    Created

    09.12.1994

    Expires

    08.12.2034

    Last Updated

    01.08.2025

    Registrar

    Gandi SAS

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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.
    A
    81/100
    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=1.0

    Typography & Readability

    roca + Proxima Nova

    WCAG AAA
    83/100
    Readability
    /30
    25/30

    20px · LH 1.53

    Hierarchy
    /20
    16/20

    2.89x ratio · ✓ H1→H6

    WCAG
    /25
    24/25

    10:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 5 req

    Heading Font

    roca

    Sans58px

    Body Font

    Proxima Nova

    Sans20px

    Contrast Ratio

    10:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~33 CPL

    Narrow lines
    58px
    h1
    46px
    h2
    26px
    h3
    20px
    p

    ✅ Excellent readability: 20px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.53 ratio (ideal range 1.4–1.6).

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 10.0:1).

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

    ✅ Strong hierarchy: Headlines are 2.9x larger than body text.

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

    Buy on MyFontsFluid Type (rem)Flesch 63

    Color Palette

    6 unique colors
    Light
    #fefefe
    Text· 14.3%
    #243859
    Primary· 49.30000000000001%
    #2c5782
    Secondary· 17.2%
    #214771
    Accent· 11.100000000000001%
    #5c7ba4
    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

    9 Resources

    7
    Scripts
    2
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    local(7)

    Website Identity

    fastmail.com

    31 years old
    Location detected: 🇺🇸 United Statesvia ip
    Gandi SAS📧 Fastmailen

    Sponsored

    Last analyzed: 25 Apr 2026 at 12:41

    Historical Analysis & Change Tracking