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browserstack.com website review

Visit site (opens in a new tab)Reviewed 2 November 202612 issues · 97 checks

This review found 12 issues worth fixing on browserstack.com, 3 of them high impact, across 97 checks. The most urgent: invalid ARIA attributes. Your full playbook turns these into prioritised fixes alongside reviews, competitors and channels.

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

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

Site score

95A

Closest competitors among SaaS websites

Compare side by side
Real-visitor load time (LCP)75th percentile, phones
2.7 s2.1 sMay 16Oct 312.3 s
Show as table
DateReal-visitor load time (LCP)
May 16, 20262.2 s
May 23, 20262.2 s
May 30, 20262.3 s
Jun 6, 20262.5 s
Jun 13, 20262.6 s
Jun 20, 20262.5 s
Jun 27, 20262.5 s
Jul 4, 20262.6 s
Jul 11, 20262.7 s
Jul 18, 20262.6 s
Jul 25, 20262.5 s
Aug 1, 20262.4 s
Aug 8, 20262.3 s
Aug 15, 20262.3 s
Aug 22, 20262.3 s
Aug 29, 20262.4 s
Sep 5, 20262.3 s
Sep 12, 20262.3 s
Sep 19, 20262.2 s
Sep 26, 20262.2 s
Oct 3, 20262.2 s
Oct 10, 20262.2 s
Oct 17, 20262.3 s
Oct 24, 20262.3 s
Oct 31, 20262.3 s
Real-visitor tap response (INP)75th percentile, phones
303 ms258 msMay 16Oct 31298 ms
Show as table
DateReal-visitor tap response (INP)
May 16, 2026284 ms
May 23, 2026288 ms
May 30, 2026291 ms
Jun 6, 2026288 ms
Jun 13, 2026289 ms
Jun 20, 2026284 ms
Jun 27, 2026275 ms
Jul 4, 2026263 ms
Jul 11, 2026267 ms
Jul 18, 2026266 ms
Jul 25, 2026270 ms
Aug 1, 2026271 ms
Aug 8, 2026276 ms
Aug 15, 2026282 ms
Aug 22, 2026287 ms
Aug 29, 2026295 ms
Sep 5, 2026286 ms
Sep 12, 2026283 ms
Sep 19, 2026279 ms
Sep 26, 2026275 ms
Oct 3, 2026279 ms
Oct 10, 2026282 ms
Oct 17, 2026293 ms
Oct 24, 2026294 ms
Oct 31, 2026298 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

www.browserstack.com (opens in a new tab)
Full-page screenshot of browserstack.com (phone) rendered by Google PageSpeed Insights

How it loaded on a phone

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

browserstack.com does not allow embedding, so this is Google's rendering of the page.

Speed

2 to fix98

  • 2,898 HTML elements

    The page has 2,898 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

  • kinsta.cloud adds 78 ms

    78 ms

    kinsta.cloud costs a phone 78 ms of main-thread work and 299 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.

  • 4 third-party services on the page

    4 third-party services load with your homepage (kinsta.cloud, Amplitude Mobile Analytics and TrustArc and others), adding 465 KiB and 137 ms of main-thread time.

  • Reduce unused JavaScript

    149 KiB

    About 149 KiB of JavaScript is downloaded but never used on this page.

  • Use efficient cache lifetimes

    29 KiB

    2 files are served with short cache lifetimes, so returning visitors download them again (29 KiB).

  • Reduce unused CSS

    27 KiB

    About 27 KiB of CSS is downloaded but never applied on this page.

  • Legacy JavaScript

    12 KiB

    Polyfills for old browsers add 12 KiB JavaScript that modern phones do not need.

  • 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.

  • Forced reflow

    Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

3 checks passed

  • Mobile performance score: 98

    98/100

    Your mobile performance score is 98. That is in Google's “good” band (90 and up).

  • Main-thread work: 0.5 s

    A phone's processor spends 0.5 s on main-thread work while loading, 153 ms of it running JavaScript. That is comfortably low.

  • Server response: 15 ms

    15 ms

    Your server sent the HTML in 15 ms, well inside Google's 600 ms guideline.

Core Web Vitals

1 to fix100

  • First Contentful Paint: 1.8 s

    1.8 s

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

  • Tap response (INP) held steady for real visitors

    +3%

    Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 284 ms to 298 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

  • Largest content (LCP) held steady for real visitors

    +6%

    Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 2.2 s to 2.3 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

11 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: 1.6 s

    1.6 s

    Real visitors wait 1.6 s for the largest content to appear (75th percentile). Good is under 2.5 s.

  • Real-user INP: 127 ms

    127 ms

    Real visitors wait 127 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: 1.5 s

    1.5 s

    Real visitors see the first content after 1.5 s (75th percentile). Good is under 1.8 s.

  • Real-user TTFB: 781 ms

    781 ms

    Real visitors wait 781 ms for your server to start answering (75th percentile). Good is under 800 ms.

  • Largest Contentful Paint: 1.8 s

    1.8 s

    Your largest element renders in 1.8 s on a phone, inside Google's 2.5 s “good” threshold. The largest element is the text “Everything you need for testing”.

  • Cumulative Layout Shift: 0

    0

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

  • Speed Index: 1.8 s

    1.8 s

    Visually, the page fills in at 1.8 s (Speed Index), inside the 3.4 s “good” threshold.

  • Total Blocking Time: 0 ms

    0 ms

    Scripts block the page for only 0 ms while loading. Good is under 200 ms.

  • Time to Interactive: 1.8 s

    1.8 s

    The page is fully interactive after 1.8 s.

Images and page weight

100

  • About 0.2 g of CO₂ per visit

    0.19 g

    By the Sustainable Web Design model, a visit to your homepage emits about 0.19 g of CO₂e: 22.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

4 checks passed

  • Page weight: 676 KiB in 26 requests

    676 KiB

    Your homepage downloads 676 KiB in 26 requests on a phone: scripts 256 KiB (7), HTML 209 KiB (1) and fonts 117 KiB (5). That is a lean page.

  • Images use modern formats

    Every sizeable image is WebP, AVIF or SVG.

  • Images load when needed

    Images below the first screen wait until the visitor scrolls to them.

  • 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 8693

  • Invalid ARIA attributes

    5 elements use ARIA attributes their role does not allow, which confuses screen readers.

  • ARIA roles used must conform to valid values (1 element)

    ARIA roles used must conform to valid values: 1 element on the page fails this check, rated critical by axe-core.

  • Elements must only use permitted ARIA attributes (1 element)

    Elements must only use permitted ARIA attributes: 1 element on the page fails this check, rated serious by axe-core.

  • ARIA role should be appropriate for the element (34 elements)

    ARIA role should be appropriate for the element: 34 elements on the page fail this check, rated minor by axe-core.

  • Headings skip levels

    Headings skip levels (h1 → h3 and h2 → h5), which makes the page harder to scan with a screen reader.

2 checks passed

  • Every image has alt text

    All 111 images in the HTML carry an alt attribute.

  • 48 automated accessibility rules passed

    axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 53 WCAG 2.2 A/AA and best-practice rules on the phone render: 48 passed and 5 failed. 2 mores need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.

SEO

4 to fixGoogle 9285

  • 2 H1 headlines

    There are 2 <h1> headlines (“Everything you need for testing” and “Everything you need for testingWith AI at every s…”). One clear main headline is easier for people and search engines.

  • Meta description is long (167 characters)

    Your meta description is 167 characters; Google truncates after about 160, so the end of your pitch is cut.

  • No social preview image

    No Open Graph image, so links shared on LinkedIn, Slack or Facebook show no preview picture.

  • 3 links with vague text

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

  • 238 internal links, 14 external

    The homepage links to 238 pages on browserstack.com and 14 external pages.

5 checks passed

  • Title: 65 characters

    Your title is a healthy 65 characters: “Most Reliable App & Cross Browser Testing Platform | BrowserStack”.

  • Canonical URL set

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

  • Structured data in place

    Structured data found: Organization, SiteNavigationElement and WebSite.

  • 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.browserstack.com/sitemap.xml.

AI search readiness

100

  • No llms.txt

    There is no /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.

3 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.

  • Organization data: 6 of 6 facts

    Your Organization JSON-LD gives name, url, logo, sameAs (social profiles), description and contact details.

  • Text is in the HTML

    Your server sends the page's text in the HTML (2,137 words), so crawlers that don't run JavaScript still read it.

Other pages

100

  • 15 internal pages checked

    We fetched 15 pages linked from your homepage (of 109 found) and read each the way a search engine does.

7 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.

  • No linked page is hidden from search

    None of the pages we checked carries a noindex tag.

  • Every page has a title

    All 15 pages that loaded have a <title>.

Best practices

Google 100100
3 checks passed

  • No console errors

    No JavaScript errors were logged while the page loaded on a phone.

  • Tap targets are thumb-sized

    40 of 41 tappable elements near the top are at least 24 px.

  • Mobile viewport set

    The page declares a mobile viewport.

Security and trust

100

  • No X-Content-Type-Options

    X-Content-Type-Options: nosniff is missing, so browsers may guess file types.

  • 1 link through redirect chains

    1 link go through two or more redirects, for example https://www.facebook.com/pages/BrowserStack/305988982776051.

  • No Referrer-Policy

    No Referrer-Policy header, so full URLs can leak to the sites you link to.

  • No Permissions-Policy

    No Permissions-Policy header to switch off camera, microphone and location for embedded content.

  • Deprecated X-XSS-Protection

    X-XSS-Protection is set to “1; mode=block;”; the header is deprecated and can introduce bugs. Use 0 or remove it.

  • No security.txt

    There is no /.well-known/security.txt telling researchers how to report a security problem to you.

8 checks passed

  • Served over HTTPS

    The homepage is served over HTTPS (browserstack.com).

  • Valid certificate (23 days left)

    The certificate from Certainly · Certainly Intermediate R1 verifies for browserstack.com and is valid for another 23 days.

  • Protected from clickjacking

    X-Frame-Options or a frame-ancestors policy stops other sites framing yours.

  • Content-Security-Policy set

    A Content-Security-Policy is set, the main browser-side defence against injected scripts.

  • HSTS enabled

    Strict-Transport-Security is set, so browsers always use https.

  • http:// redirects to https

    http://browserstack.com redirects to the secure version.

  • HTTP/2

    The server speaks HTTP/2, so browsers load many files over one connection.

  • All 48 links work

    All 48 links checked from your homepage (40 internal, 8 external) answered without errors.

Domain and trust

  • No CAA record

    browserstack.com has no CAA record, so any certificate authority may issue a certificate for it. A CAA record naming your provider (for example letsencrypt.org) closes that door.

  • DNSSEC is off

    browserstack.com's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.

2 checks passed

  • Domain is 15 years old

    15 years

    browserstack.com was registered in Apr 2011 through GoDaddy.com, LLC. An established domain carries more trust with email providers and search engines.

  • Registered until Apr 2028

    browserstack.com is registered until Apr 2028.

Content and conversion

1 to fix92

  • 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 1,100 words of copy

    The homepage carries about 1,100 words of visible text.

5 checks passed

  • Clear next step on the first screen

    On a phone, the first screen shows a clear next step: “Get started free” and “Talk to us”.

  • 26 calls to action

    The homepage has 26 calls to action, for example “Talk to Us Not sure where to start?”, “Learn more about StackConnect” and “Learn more about AI x QALS”.

  • 8 short forms

    8 short forms (6 fields at most) are right on the homepage, asking for an email.

  • Social proof on the page

    Social proof on the homepage: 15 testimonial or review blocks, 11 customer or partner logos, 3 trust badges and “more than 50,000 customers”.

  • Analytics in place

    Analytics detected: Google Tag Manager.

Email authentication

95

  • Email authentication score: 95/100

    Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.

3 checks passed

  • DMARC policy: reject

    DMARC tells receivers to reject mail that fails authentication, and sends you reports.

  • SPF in place (~all)

    An SPF record lists your sending servers and marks other mail as suspicious (~all): “v=spf1 ip4:159.135.224.173 include:amazonses.com include:_spf.google.com ip4:198.2.183.190 ~all”.

  • DKIM signing found

    A DKIM key is published (selector “google”, “selector1” and “selector2”), so receivers can verify mail really came from you.

Privacy and tracking

  • 1 tracker load before any consent

    1

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

  • 11 cookies set on arrival

    11

    Opening the homepage sets 11 cookies (measured from a US location before any click).

  • 6 other companies contacted

    Loading the homepage contacts 6 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.

1 checks passed

  • Consent tool: TrustArc

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

Upkeep, stack and company

No signs of neglect in what was checked: the copyright year, CMS and plugin versions, and jQuery.

Stack

CMS
WordPress
Analytics
Google Tag Manager
Hosting
AWS

Company

Founded
2011

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

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