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penumbrainc.com website review

Visit site (opens in a new tab)Reviewed 14 November 202628 issues · 81 checks

This review found 28 issues worth fixing on penumbrainc.com, 8 of them high impact, across 81 checks. The most urgent: reduce unused JavaScript. Your full playbook turns these into prioritised fixes alongside reviews, competitors and channels.

Read the full growth playbook for Penumbra

  1. Homepage
  2. Phone render
  3. Links and pages
  4. Google PageSpeed

Google PageSpeed Insights (opens in a new tab), mobile

Real-visitor load time (LCP)75th percentile, phones
2.0 s1.5 sMay 23Nov 71.5 s
Show as table
DateReal-visitor load time (LCP)
May 23, 20261.8 s
May 30, 20261.8 s
Jun 6, 20261.8 s
Jun 13, 20261.8 s
Jun 20, 20261.8 s
Jun 27, 20261.7 s
Jul 4, 20261.7 s
Jul 11, 20261.7 s
Jul 18, 20261.8 s
Jul 25, 20261.9 s
Aug 1, 20261.9 s
Aug 8, 20261.9 s
Aug 15, 20261.9 s
Aug 22, 20261.9 s
Aug 29, 20261.8 s
Sep 5, 20262.0 s
Sep 12, 20261.9 s
Sep 19, 20261.9 s
Sep 26, 20261.9 s
Oct 3, 20261.8 s
Oct 10, 20261.7 s
Oct 17, 20261.7 s
Oct 24, 20261.6 s
Oct 31, 20261.6 s
Nov 7, 20261.5 s
Real-visitor tap response (INP)75th percentile, phones
111 ms94 msMay 23Nov 797 ms
Show as table
DateReal-visitor tap response (INP)
May 23, 202696 ms
May 30, 2026100 ms
Jun 6, 2026100 ms
Jun 13, 2026103 ms
Jun 20, 2026102 ms
Jun 27, 202699 ms
Jul 4, 202699 ms
Jul 11, 202697 ms
Jul 18, 202697 ms
Jul 25, 202696 ms
Aug 1, 202696 ms
Aug 8, 202697 ms
Aug 15, 202697 ms
Aug 22, 202699 ms
Aug 29, 2026103 ms
Sep 5, 2026105 ms
Sep 12, 2026109 ms
Sep 19, 2026108 ms
Sep 26, 2026105 ms
Oct 3, 2026104 ms
Oct 10, 2026100 ms
Oct 17, 2026103 ms
Oct 24, 2026103 ms
Oct 31, 2026102 ms
Nov 7, 202697 ms

Chrome UX Report (opens in a new tab): real Chrome visitors over rolling 28-day periods.

One score from every part of this review. How it works

Full-page screenshot of penumbrainc.com (phone) rendered by Google PageSpeed Insights

How it loaded on a phone

  1. penumbrainc.com at 0.4 s0.4 s
  2. penumbrainc.com at 0.8 s0.8 s
  3. penumbrainc.com at 1.1 s1.1 s
  4. penumbrainc.com at 1.5 s1.5 s
  5. penumbrainc.com at 1.9 s1.9 s
  6. penumbrainc.com at 2.3 s2.3 s
  7. penumbrainc.com at 2.6 s2.6 s
  8. penumbrainc.com at 3.0 s3.0 s

Speed

9 to fix59
  • Reduce unused JavaScript

    5.9 s · 673 KiB

    About 673 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 5.9 s faster on a phone.

  • audioeye-services.com adds 1.5 s

    1.5 s

    audioeye-services.com costs a phone 1.5 s of main-thread work and 315 KiB of downloads while your page loads. That alone is enough to make taps feel slow. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

  • 8 third-party services on the page

    8 third-party services load with your homepage (audioeye-services.com, Google CDN and Google Tag Manager and others), adding 1.6 MB and 1.9 s of main-thread time.

  • Mobile performance score: 59

    59/100

    Your mobile performance score is 59. Pages that score under 90 lose visitors before the first paint.

  • Render-blocking requests

    600 ms

    19 files block the first paint until they finish downloading. Deferring or inlining them could save about 600 ms.

  • Use efficient cache lifetimes

    450 ms · 120 KiB

    12 files are served with short cache lifetimes, so returning visitors download them again (120 KiB).

  • Reduce unused CSS

    450 ms · 103 KiB

    About 103 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 450 ms faster on a phone.

  • Google CDN adds 261 ms

    261 ms

    Google CDN costs a phone 261 ms of main-thread work and 743 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

  • Main-thread work: 3.1 s

    A phone's processor spends 3.1 s on main-thread work while loading, 2.4 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

  • Improve image delivery

    150 ms · 179 KiB

    7 images could be 179 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 150 ms faster on a phone.

  • Legacy JavaScript

    150 ms · 35 KiB

    Polyfills for old browsers add 35 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

  • 5 long tasks on the main thread

    5 long tasks block the main thread while loading, the longest for 88 ms. During a long task the page ignores taps.

  • Chained critical requests

    Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

  • Minify CSS

    5 KiB

    5 KiB could be saved by minifying CSS.

1 checks passed
  • Server response: 5 ms

    5 ms

    Your server sent the HTML in 5 ms, well inside Google's 600 ms guideline.

Core Web Vitals

5 to fix100
  • Largest Contentful Paint: 14.6 s

    14.6 s

    Your largest element takes 14.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

  • First Contentful Paint: 6.5 s

    6.5 s

    The first text or image appears after 6.5 s on a phone. Good is under 1.8 s.

  • Time to Interactive: 16.4 s

    16.4 s

    The page becomes fully interactive after 16.4 s. Good is under 3.8 s.

  • Speed Index: 6.5 s

    6.5 s

    Visually, the page fills in at 6.5 s (Speed Index). Good is under 3.4 s.

  • 11 images without width and height

    11 images have no width and height attributes, so the layout jumps as each one loads.

  • Tap response (INP) held steady for real visitors

    +2%

    Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' tap response (inp) went from 96 ms to 97 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

9 checks passed
  • Passes Core Web Vitals for real visitors

    Real Chrome users on phones pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)).

  • Real-user LCP: 1.3 s

    1.3 s

    Real visitors wait 1.3 s for the largest content to appear (75th percentile). Good is under 2.5 s.

  • Real-user INP: 94 ms

    94 ms

    Real visitors wait 94 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

  • Real-user CLS: 0.00

    0.00

    For real visitors the layout shifts by 0.00 (75th percentile). Good is under 0.1.

  • Real-user FCP: 1.1 s

    1.1 s

    Real visitors see the first content after 1.1 s (75th percentile). Good is under 1.8 s.

  • Real-user TTFB: 550 ms

    550 ms

    Real visitors wait 550 ms for your server to start answering (75th percentile). Good is under 800 ms.

  • Largest content (LCP) got 15% faster for real visitors

    -15%

    Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' largest content (lcp) went from 1.8 s to 1.5 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

  • Total Blocking Time: 72 ms

    72 ms

    Scripts block the page for only 72 ms while loading. Good is under 200 ms.

  • Cumulative Layout Shift: 0

    0

    The layout barely moves while loading (CLS 0, good is under 0.1).

Images and page weight

2 to fix78
  • Page weight: 2.9 MB in 98 requests

    2.9 MB

    Your homepage downloads 2.9 MB in 98 requests on a phone: scripts 1.4 MB (37), images 883 KiB (33) and other files 402 KiB (9). Under 2 MB keeps phones on slow connections fast.

  • 10 images below the first screen load straight away

    10 images further down the page (466 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

  • About 0.8 g of CO₂ per visit

    0.83 g

    By the Sustainable Web Design model, a visit to your homepage emits about 0.83 g of CO₂e: 100.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

2 checks passed
  • Images use modern formats

    Every sizeable image is WebP, AVIF or SVG.

  • Images are sized for phones

    No image is downloaded at more than three times the size it is drawn on a phone.

Accessibility

4 to fixGoogle 9795
  • ARIA commands must have an accessible name (2 elements)

    ARIA commands must have an accessible name: 2 elements on the page fail this check, rated serious by axe-core.

  • All page content should be contained by landmarks (1 element)

    All page content should be contained by landmarks: 1 element on the page fails this check, rated moderate by axe-core.

  • 5 links without text

    5 visible links have no text or label, so screen readers cannot say where they go.

  • 1 form field without a label

    1 form field has no label, so screen readers announce an empty box and autofill guesses.

  • Headings skip levels

    Headings skip levels (h2 → h6, h2 → h4 and h2 → h6), which makes the page harder to scan with a screen reader.

2 checks passed
  • Every image has alt text

    All 31 images in the HTML carry an alt attribute.

  • 46 automated accessibility rules passed

    axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 48 WCAG 2.2 A/AA and best-practice rules on the phone render: 46 passed and 2 failed. 3 mores need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.

SEO

2 to fixGoogle 9290
  • Title is short (28 characters)

    Your title is only 28 characters: “Penumbra, Inc - Penumbra Inc”. Between 30 and 65 characters leaves room to say what you do and for whom.

  • 2 links with vague text

    2 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.

  • 144 internal links, 5 external

    The homepage links to 144 pages on penumbrainc.com and 5 external pages.

7 checks passed
  • Meta description: 124 characters

    Your meta description is 124 characters: “Penumbra is a global healthcare company that is focused on innovating novel technologies to help as many people as poss…”.

  • One H1 headline

    Your main headline reads: “Innovating with Purpose”.

  • Canonical URL set

    The canonical URL is https://www.penumbrainc.com/.

  • Structured data in place

    Structured data found: ImageObject, Organization, WebPage and WebSite.

  • Open Graph tags complete

    Open Graph tags are complete, so shared links show a title, description and image.

  • robots.txt in place

    robots.txt is in place and points crawlers to your sitemap.

  • XML sitemap found

    Your XML sitemap is reachable at https://www.penumbrainc.com/sitemap_index.xml.

AI search readiness

1 to fix88
  • Organization data is thin (2 of 6 facts)

    Your Organization JSON-LD is missing url, sameAs (social profiles), description and contact details. These are the facts AI assistants use to describe a business and to tell it apart from others with a similar name.

  • No llms.txt

    There is no https://www.penumbrainc.com/llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.

2 checks passed
  • AI answer engines may read the site

    Your robots.txt lets the crawlers behind ChatGPT search, Claude and Perplexity read the site and cite it in answers.

  • Text is in the HTML

    Your server sends the page's text in the HTML (635 words), so crawlers that don't run JavaScript still read it.

Other pages

1 to fix93
  • 1 linked page hidden from search

    https://www.penumbrainc.com/meetings-events is marked noindex but linked from your homepage. If it is meant to be found, remove the noindex.

  • 15 internal pages checked

    We fetched 15 pages linked from your homepage (of 69 found) and read each the way a search engine does.

6 checks passed
  • Linked pages load

    All 15 pages we checked loaded without an error.

  • Canonical URLs point to themselves

    No page we checked hands its ranking to a different URL.

  • Every page has a meta description

    All 15 pages that loaded have a meta description.

  • Titles are unique

    Every page we checked has its own title.

  • Every page has an H1

    Each page we checked has a main headline.

  • Every page has a title

    All 15 pages that loaded have a <title>.

Best practices

2 to fixGoogle 8891
  • 3 JavaScript errors while loading

    3 errors were logged to the browser console while the page loaded, for example “Access to XMLHttpRequest at 'https://wsv3cdn.audioeye-services.com/static-scripts/v2/2026-11-11b/fullCSS.bundle.css' fr…”.

  • 1 distorted image

    1 image is displayed at the wrong aspect ratio, so it looks stretched or squashed.

  • 3 low-resolution images

    3 images are served at too low a resolution for sharp phone screens.

2 checks passed
  • Tap targets are thumb-sized

    17 of 19 tappable elements near the top are at least 24 px.

  • Mobile viewport set

    The page declares a mobile viewport.

Content and conversion

2 to fix75
  • No social proof

    No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

  • No direct contact details

    No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

  • No risk reducer

    No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

  • About 510 words of copy

    The homepage carries about 510 words of visible text.

4 checks passed
  • Clear next step on the first screen

    On a phone, the first screen shows a clear next step: “CONTACT US”.

  • 10 calls to action

    The homepage has 10 calls to action, for example “Contact Us”, “CONTACT US” and “LEARN MORE”.

  • 1 short form

    A short form (1 field at most) is right on the homepage.

  • Analytics in place

    Analytics detected: Google Tag Manager.

Privacy and tracking

  • 1 tracker load before any consent

    1

    Before a visitor clicks anything, the page loads Google Tag Manager (measured from a US location before any click). A consent tool (OneTrust) is installed; check it blocks these until visitors agree where the law requires it.

  • 4 cookies set on arrival

    4

    Opening the homepage sets 4 cookies, 1 of them by other companies (measured from a US location before any click).

  • 11 other companies contacted

    Loading the homepage contacts 11 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.

1 checks passed
  • Consent tool: OneTrust

    A consent management tool (OneTrust) loads with the page.

Security, domain, email and software versions

The security, domain and email checks, software and plugin versions, and any app with a known security problem are visible only to people at penumbrainc.com, because details like these could help someone attack a site. Every review keeps them private, whatever they found.

Upkeep, stack and company

Stack

CMS
WordPress
Framework
jQuery
Analytics
Google Tag Manager
Hosting
Cloudflare

Hiring

Hiring
71 open roles
Teams
IT (14), International Sales (7), Quality Engineers (7), Product Marketing (5)
Job board
lever

Company

Employees
4,054
Founded
2004
Headquarters
Alameda

Upkeep, stack, hiring and company data from programmable.info

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