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semtech.com

https://semtech.com· First analyzed 27 Apr 2026· Updated 27 Apr 2026
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semtech.com
Desktop screenshot of semtech.com
Mobile screenshot of semtech.com
Mobile

Sponsored

Hosting Provider

Equinix, Inc.

IP Address

149.97.171.6

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Denver, United States

ASN

AS15830

Organization

Equinix, Inc.

Server

Apache

CDN

CloudFront

Nameservers

dns2.cscdns.net.dns1.cscdns.net.

Performance

91

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.7 MB
73 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
HubSpot CMS
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Technology Stack

10 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Hotjar
Plausible Analytics

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Marketing

1
HubSpot

Web Servers

1
Apache

SEO Analysis

A82/100
25
4
0
Meta Tags11/15
Content12/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
S
semtech.comsemtech.com

Semtech Semiconductor, IoT Systems and Cloud Connectivity | Semtech

Semtech Corporation is a high-performance semiconductor, IoT systems and Cloud connectivity service provider.

Title Length68 chars

Recommended: 50-60 chars (~417px / 580px)

Description Length109 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    6 URLs

    6 sub-sitemaps

    robots.txt

    12 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    26/100
    Needs Work
    8 12

    Sponsored

    AI & LLM Readiness

    D50/100
    Bot Access
    20/25
    Machine Read.
    12/25
    Schema Data
    3/25
    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

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:12%
    Words:2,323
    Token eff.:Optimal
    Sections/1K:13.3
    Depth:1/5

    Structured Data

    1 JSON-LD
    Organization×1.1
    sameAs entity links

    Citation Readiness

    Opening Summary49w
    Descriptive Headingsavg 2.4w
    Canonical URL
    Open Graph2/3
    Twitter Card2/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (7)
    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
    13
    Passed
    2
    Critical
    1
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    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
    13/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    5/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    29/100
    E
    347 mg
    CO₂e / view
    2.7 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    396 mg
    vs
    Returning (cached)
    198 mg
    Annual (10K/mo)
    41.6 kg
    Emission Segments
    Data Center
    77 mg
    Network
    83 mg
    Device
    186 mg
    Resource Breakdown
    JavaScript
    217.1 KB
    Images
    990.3 KB
    CSS
    1.5 MB
    HTML
    22.3 KB
    Other
    78.3 KB
    Green Hosting Not Verified
    Equinix, Inc.
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Interactive

    HTTPS

    No WAF

    285d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Amazon

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    09.01.2026

    Valid Until

    06.02.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    *.semtech.com

    SHA-256 Fingerprint

    5A:11:28:60:4C:0E:52:F5:B7:B9:F9:13:C5:BF:2C:C8:A8:E6:C0:62...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-origin
    https://semtechcorp.sharepoint.com
    cache-control
    🔴 No Cache(no-cache="set-cookie")
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    default-src 'self'; script-src 'self' 'unsafe-inline' *.semt...
    content-type
    text/html; charset=UTF-8
    date
    Mon, 27 Apr 2026 20:13:16 GMT
    Good Warning Issue

    Email Infrastructure

    Mimecast

    Score

    73

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (2)

    usb-smtp-inbound-1.mimecast.com
    usb-smtp-inbound-2.mimecast.com

    Domain Information

    semtech.com

    Domain Age
    29y 10m

    Created

    10.06.1996

    Expires

    09.06.2026

    Last Updated

    05.06.2024

    Registrar

    CSC Corporate Domains, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    OneTrust

    Cookie Consent Banner
    OneTrust
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: OneTrust
    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.
    B
    79/100
    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

    Typography & Readability

    Titillium Web

    WCAG Partial
    61/100
    Readability
    /30
    14/30

    12px · LH 1.50

    Hierarchy
    /20
    17/20

    4.67x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    1:1 min contrast

    Performance
    /25
    13/25

    1 font · 6 req

    Heading Font

    Titillium Web

    Sans56px

    Body Font

    Titillium Web

    Sans12px

    Contrast Ratio

    1:1

    16 issues

    Reading Comfort

    ~42 CPL

    Narrow lines
    56px
    h1
    60px
    h2
    16px
    h3
    22px
    h4
    12px
    p

    ❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

    ❌ Very complex text: Flesch score 16/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 4.7x larger than body text.

    Buy on MyFontsFluid Type (rem)Flesch 16

    Color Palette

    10 unique colors
    14.6:1 AAA Light
    #ffffff
    Background· 17.799999999999997%
    #2e2729
    Text· 5.8%
    #000001
    Background· 26.200000000000003%
    #0c1e2a
    Primary· 17.200000000000003%
    #09b1ac
    Accent· 8.6%
    #2a3d47
    Secondary· 7.9%
    #625550
    Secondary· 5%
    #237883
    Accent· 2.9%

    Business & Marketing Stack

    5 Tools Detected

    Enterprise

    Behavior Analytics

    4
    Google Tag ManagerFree
    Google AnalyticsFree
    HotjarMid-Market
    PlausibleSMB

    User behavior and product analytics

    Privacy & Cookies

    1
    OneTrustEnterprise

    Cookie consent and privacy compliance tools

    2

    Categories

    5

    Total Tools

    1

    Enterprise

    1

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    27 Resources

    20
    Scripts
    7
    Styles
    6
    Async
    5
    Defer

    Top Script Sources

    semtech.com(8)googletagmanager.com(3)details-enterprise-7.com(2)cdn.cookielaw.org(2)static.hotjar.com(1)

    Website Identity

    Semtech

    Semtech

    Organization
    www.semtech.com/
    29 years old
    Location detected: 🇺🇸 United Statesvia ip
    CSC Corporate Domains, Inc.📧 Mimecasten

    Sponsored

    Last analyzed: 27 Apr 2026 at 20:13

    Historical Analysis & Change Tracking