Site teardown · Fastenal
fastenal.com
Site health · September 9, 2026
Prepared by Harvv

What your site is actually doing.

One page: what is working, what is costing you visitors, and what to fix next. A phone-and-desktop teardown of the live site: 4 phone loads + 2 desktop loads. No login, no insider access, no Harvv pixel needed. The full evidence is at the bottom.

September 9, 2026·External scan·4 mobile + 2 desktop loads · no pixel data·Download as PDF

Working

What's already working. These held up across every load.

0.7s

Speed is good.

0

No JavaScript errors on load.

91/100

Lighthouse scores SEO 91/100. The fundamentals Google looks for are present.

Nothing spilled past the edge at either 390px (phone) or 1366px (desktop), so the structure is responsive.

Costing you

Ranked by what hurts conversion most. Full evidence below.

36/53

Tiny buttons are hard to tap on mobile

5

A floating widget is covering a clickable element

tags

Meta Pixel (Facebook) is installed but misconfigured

4

Google Analytics tracking broken

faint

Some text is low-contrast and hard to read

4.9MB

Page is heavy and slow on mobile data

Fixing next
tap targets, obscured control and page weight.

3 small changes, on the pages people actually land on: Tiny buttons are hard to tap on mobile; A floating widget is covering a clickable element; Page is heavy and slow on mobile data. We re-measure the same samples after.

4
hours

This is one of several industrial supply sites we tore down the same way. The same friction repeats on Uline, and we pulled the cross-site pattern together in the industrial web report.

01Findings, ranked by what hurts conversion most

SeverityFindingHow we know
HighTiny buttons are hard to tap on mobileMobileAccessibility (WCAG)Conversion
36 of 53 tappable items on this page (68%) measure under 24 pixels on their shorter side, below the 24px floor WCAG 2.5.8 sets for accessibility and well under the platform minimums (Apple recommends 44pt, Android 48dp) for reliable tapping, and the same ones came up small on every test load. When visitors can't hit what they expect to, they get frustrated and many of them leave instead of trying again.
paste into Claude, Cursor, or ChatGPT
HighA floating widget is covering a clickable elementBothConversionAccessibility (WCAG)
5 clickable elements are sitting underneath a fixed overlay (img.mw-100 over a "Engineering"), so a visitor who tries to tap them hits the widget on top instead. The element is there and looks fine in a preview, it just can't be reached. Move the floating widget to a clear corner, lower its z-index, or add spacing so it never overlaps your links and buttons.
paste into Claude, Cursor, or ChatGPT
MediumPage is heavy and slow on mobile dataBothPerformance
Each visit downloads about 4.9 MB, roughly 2834 KB of images and 1528 KB of JavaScript across 89 separate downloads. On a fast connection that's fine. On a phone with patchy mobile data, that's several seconds of blank screen before the page is readable.
paste into Claude, Cursor, or ChatGPT
median across loads
LowImages have no width or height set (layout is stable for now)BothPerformanceSEO
13 of 14 images don't declare width and height. Your layout currently stays stable (measured Cumulative Layout Shift is 0, which is fine), most likely because space is reserved another way (CSS), so this is not causing visible jumps today. It is still worth setting explicit dimensions or a CSS aspect-ratio so a slow connection or a future style change cannot reintroduce shift.
paste into Claude, Cursor, or ChatGPT
LowUnused JavaScript is being downloadedBothPerformance
Code that never runs on this page still costs download and parse time on every visit. Splitting or removing it speeds up load. Lighthouse measured: Est savings of 726 KiB.
paste into Claude, Cursor, or ChatGPT
LowUnused CSS is being downloadedBothPerformance
Style rules that this page never uses still block rendering while they download. Trimming them frees the paint path. Lighthouse measured: Est savings of 57 KiB.
paste into Claude, Cursor, or ChatGPT
LowThe page loads from a lot of third-party servicesBoth
Around 16 separate outside domains load on this page (analytics, ads, chat widgets, fonts). Each one is a connection that can be slow, fail, or change behavior outside your control.
paste into Claude, Cursor, or ChatGPT
median across loads
LowNo email capture or newsletter detectedBothConversion
No email input field was found in the page, and no email-marketing tag (Klaviyo, Mailchimp, Substack, ConvertKit, Beehiiv, MailerLite, ActiveCampaign, Omnisend, Brevo, Drip or Buttondown) was detected. A form that loads after JavaScript runs, or one behind a popup or a separate page, will not be visible to this check. If capturing visitors is relevant to this site, an email signup builds an owned audience you keep regardless of ad costs. Not every site needs one.
paste into Claude, Cursor, or ChatGPT
HighMeta Pixel (Facebook) is installed but misconfiguredBothTracking
Meta Pixel installed but no Lead/Purchase/Checkout event fires on this page, only PageView. Your Meta ad sessions can't be optimized for conversions until you track at least one downstream event.
paste into Claude, Cursor, or ChatGPT
HighGoogle Analytics tracking brokenBothTrackingConversion
The Google Analytics request failed to complete on every one of the 4 test loads. If real visitors hit the same failure, GA is missing those visits and the dashboard has no way to flag it. Conversion numbers, audience counts, and channel attribution are all undercounting. Worth checking the tag loading order and any consent banner that might be blocking the request.
paste into Claude, Cursor, or ChatGPT
LowNo canonical tag, so duplicate URLs split the page's rankingBoth
When the same content is reachable at multiple URLs (think tracking parameters or session IDs), Google can split your ranking signal across them. A single canonical tag tells Google which version counts.
paste into Claude, Cursor, or ChatGPT
LowThe page has 3 top-level headingsBoth
Multiple <h1> tags blur which heading is the main one. Keep one H1 and demote the rest to H2 so the page's structure is clear.
paste into Claude, Cursor, or ChatGPT
LowLinks to this page will look bare when sharedBoth
The page is missing its Open Graph title and image, so when someone shares it on Facebook, LinkedIn, iMessage, or Slack the preview has no title and image. A flat grey link gets far fewer clicks than one with an image and headline.
paste into Claude, Cursor, or ChatGPT
LowNo structured data for rich search resultsBoth
The page has no schema.org markup. Adding the right type (Product, Article, Organization, FAQ) lets Google show rich results like star ratings and prices, which lift click-through for free.
paste into Claude, Cursor, or ChatGPT
HighSome text is low-contrast and hard to readBothAccessibility (WCAG)
Low4 interactive elements have no stable, accessible identityBothAccessibility (WCAG)Tracking
These elements are clicked like buttons but expose no accessible name, or are a plain div/span used as a control with no role. Assistive tech announces only a role (or nothing), and analytics and heatmaps have no human-readable label or stable selector to bind the click to, so the click is both inaccessible and untrackable, and any redesign silently breaks click aggregation. Give each one a real <button>/<a>, an aria-label, and a stable id or data-attribute.
paste into Claude, Cursor, or ChatGPT
LowImages are missing alt textBothAccessibility (WCAG)SEO
Screen readers skip or read the filename of images without alt text, and search engines lose the context. Describe content images; mark decorative ones alt="".
paste into Claude, Cursor, or ChatGPT
LowHeadings skip levelsBothAccessibility (WCAG)
Skipping a heading level breaks the document outline that screen readers and search engines rely on. On this page the outline jumps to an H6 without the level above it, at "Get a closer look at our services". Lighthouse flagged 2 headings out of order.
paste into Claude, Cursor, or ChatGPT

Accessibility findings are automated checks against Web Content Accessibility Guidelines (WCAG) 2.1 and 2.2. They flag potential barriers and legal risk, not a certification or a determination of compliance with the ADA, Section 508, or EN 301 549. Automated testing catches only a subset of issues; a full conformance review needs manual and assistive-technology testing by a qualified reviewer.

From finding to fix
Want the fix, not just the finding?
Install Harvv and we turn each issue above into a ready-to-paste prompt for your AI coding assistant. Drop it into Cursor, Claude, or Copilot and the diagnosis becomes a concrete code change, written against this exact page.
Get the fix prompts

"How we know": unlabeled = a deterministic fact, identical on every load (e.g. element sizes). Most findings are this kind, so we only mark the exceptions: median across loads = a noisy lab metric, reported as a median. real-user field data = Google CrUX, actual Chrome visitors.

01bTake the whole report to your AI

Every finding above in one payload, with the reasoning behind each one. The prompt is written to be pasted into Claude, Cursor, or ChatGPT. The JSON is for piping into your own tooling.

Includes the site context, what is already working (so your assistant does not "fix" it), and every finding with its severity, evidence, and why it matters.
Audit of https://fastenal.com, run September 9, 2026. 18 issues were found. I want them fixed.

## Context
- Site: https://fastenal.com
- Mobile LCP (lab median): 662 ms
- Desktop LCP (lab median): 664 ms
- Page weight (median): 4.9 MB
- Tap targets under 44px: 68% (36 of 53)
- Evidence base: 4 mobile + 2 desktop loads

## Already working, do not change these
- Speed is good: The main content paints in about 0.7s in our test loads, inside Google's 2.5s "good" threshold. Real networks are slower, but the page itself is not heavy.
- No JavaScript errors on load: Nothing threw a script error across the test loads, so buttons and tracking are not silently breaking mid-session.
- Search basics are in place: Lighthouse scores SEO 91/100. The fundamentals Google looks for are present.
- Layout holds on phone and desktop: Nothing spilled past the edge at either 390px (phone) or 1366px (desktop), so the structure is responsive.

## Issues, most damaging first

### 1. [HIGH] Tiny buttons are hard to tap on mobile
Affects: mobile only
Category: Accessibility (WCAG), Conversion
Why it matters: 36 of 53 tappable items on this page (68%) measure under 24 pixels on their shorter side, below the 24px floor WCAG 2.5.8 sets for accessibility and well under the platform minimums (Apple recommends 44pt, Android 48dp) for reliable tapping, and the same ones came up small on every test load. When visitors can't hit what they expect to, they get frustrated and many of them leave instead of trying again.
Exact elements found (8 of 36): a 163x19 "Industrial Services", a 163x19 "Green Resources", a 163x19 "Blue Lane Freight", a 163x19 "International Orders", a 124x19 "Safety", a 124x19 "Metalworking", a 124x19 "Engineering", a 124x19 "Government"

### 2. [HIGH] A floating widget is covering a clickable element
Category: Conversion, Accessibility (WCAG)
Why it matters: 5 clickable elements are sitting underneath a fixed overlay (img.mw-100 over a "Engineering"), so a visitor who tries to tap them hits the widget on top instead. The element is there and looks fine in a preview, it just can't be reached. Move the floating widget to a clear corner, lower its z-index, or add spacing so it never overlaps your links and buttons.
Exact elements found: a "Engineering" under img.mw-100, a "Government" under nav.navbar, a "Accessibility" under p.ps-3, a "Blue Lane Freight" under p.ps-3, a "Safety Data Sheets" under div.col-xs-12

### 3. [HIGH] Meta Pixel (Facebook) is installed but misconfigured
Category: Tracking
Why it matters: Meta Pixel installed but no Lead/Purchase/Checkout event fires on this page, only PageView. Your Meta ad sessions can't be optimized for conversions until you track at least one downstream event.

### 4. [HIGH] Google Analytics tracking broken
Category: Tracking, Conversion
Why it matters: The Google Analytics request failed to complete on every one of the 4 test loads. If real visitors hit the same failure, GA is missing those visits and the dashboard has no way to flag it. Conversion numbers, audience counts, and channel attribution are all undercounting. Worth checking the tag loading order and any consent banner that might be blocking the request.

### 5. [HIGH] Some text is low-contrast and hard to read
Category: Accessibility (WCAG)
Why it matters: Text that does not stand out enough from its background is hard to read for many visitors, and fails accessibility guidelines Google checks.
Exact elements found: h1 "Supply ChainsSimplified.": 1:1, needs 3:1 (rgb(255, 255, 255) on rgb(255, 255, 255)), em "Featuring Body Guard": 1:1, needs 3:1 (rgb(255, 255, 255) on rgb(255, 255, 255)), p "DIGITAL TOOLS": 1:1, needs 4.5:1 (rgb(255, 255, 255) on rgb(255, 255, 255)), h2 "Simplifying procurement,unlo": 1:1, needs 3:1 (rgb(255, 255, 255) on rgb(255, 255, 255)), span "unlocking analytics": 1:1, needs 3:1 (rgb(255, 255, 255) on rgb(255, 255, 255)), p "Digital toolboxes should hav": 1:1, needs 4.5:1 (rgb(255, 255, 255) on rgb(255, 255, 255))

### 6. [MEDIUM] Page is heavy and slow on mobile data
Category: Performance
Why it matters: Each visit downloads about 4.9 MB, roughly 2834 KB of images and 1528 KB of JavaScript across 89 separate downloads. On a fast connection that's fine. On a phone with patchy mobile data, that's several seconds of blank screen before the page is readable.
How we know: median across loads

### 7. [LOW] Images have no width or height set (layout is stable for now)
Category: Performance, SEO
Why it matters: 13 of 14 images don't declare width and height. Your layout currently stays stable (measured Cumulative Layout Shift is 0, which is fine), most likely because space is reserved another way (CSS), so this is not causing visible jumps today. It is still worth setting explicit dimensions or a CSS aspect-ratio so a slow connection or a future style change cannot reintroduce shift.
Exact elements found (6 of 13): fastenal.png "FASTENAL", Nut.svg "NutIcon", shop-now.svg "Shop Now", chevron-left-solid%20.svg "Scroll Left", d2-fasteners.webp "Fasteners", d2-safety.webp "Safety"

### 8. [LOW] Unused JavaScript is being downloaded
Category: Performance
Why it matters: Code that never runs on this page still costs download and parse time on every visit. Splitting or removing it speeds up load. Lighthouse measured: Est savings of 726 KiB.

### 9. [LOW] Unused CSS is being downloaded
Category: Performance
Why it matters: Style rules that this page never uses still block rendering while they download. Trimming them frees the paint path. Lighthouse measured: Est savings of 57 KiB.

### 10. [LOW] The page loads from a lot of third-party services
Why it matters: Around 16 separate outside domains load on this page (analytics, ads, chat widgets, fonts). Each one is a connection that can be slow, fail, or change behavior outside your control.
How we know: median across loads

### 11. [LOW] No email capture or newsletter detected
Category: Conversion
Why it matters: No email input field was found in the page, and no email-marketing tag (Klaviyo, Mailchimp, Substack, ConvertKit, Beehiiv, MailerLite, ActiveCampaign, Omnisend, Brevo, Drip or Buttondown) was detected. A form that loads after JavaScript runs, or one behind a popup or a separate page, will not be visible to this check. If capturing visitors is relevant to this site, an email signup builds an owned audience you keep regardless of ad costs. Not every site needs one.

### 12. [LOW] No canonical tag, so duplicate URLs split the page's ranking
Why it matters: When the same content is reachable at multiple URLs (think tracking parameters or session IDs), Google can split your ranking signal across them. A single canonical tag tells Google which version counts.

### 13. [LOW] The page has 3 top-level headings
Why it matters: Multiple <h1> tags blur which heading is the main one. Keep one H1 and demote the rest to H2 so the page's structure is clear.

### 14. [LOW] Links to this page will look bare when shared
Why it matters: The page is missing its Open Graph title and image, so when someone shares it on Facebook, LinkedIn, iMessage, or Slack the preview has no title and image. A flat grey link gets far fewer clicks than one with an image and headline.

### 15. [LOW] No structured data for rich search results
Why it matters: The page has no schema.org markup. Adding the right type (Product, Article, Organization, FAQ) lets Google show rich results like star ratings and prices, which lift click-through for free.

### 16. [LOW] 4 interactive elements have no stable, accessible identity
Category: Accessibility (WCAG), Tracking
Why it matters: These elements are clicked like buttons but expose no accessible name, or are a plain div/span used as a control with no role. Assistive tech announces only a role (or nothing), and analytics and heatmaps have no human-readable label or stable selector to bind the click to, so the click is both inaccessible and untrackable, and any redesign silently breaks click aggregation. Give each one a real <button>/<a>, an aria-label, and a stable id or data-attribute.
Exact elements found: (a.text-decoration-none) (no accessible name), (a.text-decoration-none) (no accessible name), (a.text-decoration-none) (no accessible name), (a.text-decoration-none) (no accessible name)

### 17. [LOW] Images are missing alt text
Category: Accessibility (WCAG), SEO
Why it matters: Screen readers skip or read the filename of images without alt text, and search engines lose the context. Describe content images; mark decorative ones alt="".

### 18. [LOW] Headings skip levels
Category: Accessibility (WCAG)
Why it matters: Skipping a heading level breaks the document outline that screen readers and search engines rely on. On this page the outline jumps to an H6 without the level above it, at "Get a closer look at our services". Lighthouse flagged 2 headings out of order.

## How to respond
Work through the issues in order. For each one give me the specific change that fixes it: real code or real copy, not advice. Keep changes minimal and match the existing style of the site.
Where several issues share one root cause, say so and fix it once rather than patching each symptom.
If an issue cannot be fixed without seeing more of the code, say exactly which file or selector you need instead of guessing.
18 findings, ready to paste

02Performance: phone, desktop, and real visitors

MetricMobileDesktopRead
TTFB (lab median)189 ms181 msLab
FCP (lab median)342 ms432 msLab
LCP (lab median)662 ms664 msGood
Page weight (median)4.9 MB10.7 MBWatch

Google Lighthouse (lab): Performance 21 mobile / 31 desktop, SEO 91, Accessibility 74, Best Practices 92.

Lab numbers are from a headless mobile browser on an unthrottled connection: treat them as a floor, not a typical experience. Add a Google API key to light up real-user field data (CrUX) and Lighthouse scores.

03Tiny buttons are hard to tap on mobile

36 of 53 tappable items on this page come in below the platform minimums for reliable tapping on a phone (Apple recommends 44pt, Android 48dp; WCAG 2.5.8 sets 24px as the hard accessibility floor). The same ones came up small on every one of the 4 test loads, so this is the page itself, not a fluke.

When customers can't tap what they expect to, they get frustrated and many of them leave. They don't file a bug. They don't try again. They just leave. A desktop dashboard can't see this because it's the difference between a thumb and a cursor.

The buttons measuring below the minimum on this scan:

  • a 163x19 "Industrial Services"
  • a 163x19 "Green Resources"
  • a 163x19 "Blue Lane Freight"
  • a 163x19 "International Orders"
  • a 124x19 "Safety"
  • a 124x19 "Metalworking"
  • a 124x19 "Engineering"
  • a 124x19 "Government"

The fix is CSS-only on most sites: add padding around the icon (don't just change the icon size) so the actual tap area is at least 44×44 pixels. No redesign, no new assets.

04Technical SEO & structured data

CheckResult
TitleFastenal Industrial Supplies, OEM Fasteners, Safety Products & More (67 chars)
Meta description146 chars
H13 on page
CanonicalMissing
Structured data (JSON-LD)None
Open GraphIncomplete

05The fix checklist

Everything to fix, priority first, each tagged with the screen it affects and a rough effort. Work top to bottom.

  1. Tiny buttons are hard to tap on mobileMobileCSS only
  2. A floating widget is covering a clickable elementBothCSS only
  3. Page is heavy and slow on mobile dataBothSmall
  4. Images have no width or height set (layout is stable for now)BothCSS only
  5. Unused JavaScript is being downloadedBothVaries
  6. Unused CSS is being downloadedBothVaries
  7. The page loads from a lot of third-party servicesBothDev afternoon
  8. No email capture or newsletter detectedBothVaries
  9. Meta Pixel (Facebook) is installed but misconfiguredBothVaries
  10. Google Analytics tracking brokenBothDev afternoon
  11. No canonical tag, so duplicate URLs split the page's rankingBoth1 line
  12. The page has 3 top-level headingsBothVaries
  13. Links to this page will look bare when sharedBoth1 line
  14. No structured data for rich search resultsBothVaries
  15. Some text is low-contrast and hard to readBothVaries
  16. 4 interactive elements have no stable, accessible identityBothDev afternoon
  17. Images are missing alt textBothVaries
  18. Headings skip levelsBothVaries

Effort is a rough read from the outside: "CSS only" means no new assets or backend work, "1 line" means a single tag, "Dev afternoon" means a developer needs to touch tracking or scripts.

06What this report cannot tell you

Everything above is from the outside, looking at the page on a simulated phone and desktop. The questions that actually decide revenue need real visitors. Install the Harvv pixel (one script tag, 16 KB, zero personal data, no engineering project) and within about 72 hours you'd know which buttons real customers tapped and missed, how often Google Analytics is missing visits, and exactly where mobile shoppers stalled and left. This report shows you where to look. The pixel shows you how often it happens, and to whom.

What to do next
See this same depth on your real visitors, every day.

Drop the Harvv pixel on fastenal.com and we turn this one-off scan into ongoing measured behavior: which taps miss, where sessions stall, and the real drop rates. Free to start, no card needed.

Add the pixel free

07How we did this, and what it can't prove

  • 4 mobile + 2 desktop loads of one URL from headless Chrome (iPhone viewport at 390px, desktop at 1366px), September 9, 2026. Enough loads to separate real defects from random noise, not a full-site crawl.
  • Lab numbers, not real-user numbers (no field data was available for this run). Real devices on real networks run slower.
  • Friction is inferred, not counted. We can prove a button is small. We can't, from the outside, count how often it causes a missed tap. That requires the pixel on a live page.

About Harvv, the source of this teardown

Harvv is a behavioral UX analytics platform (harvv.com). A lightweight JavaScript pixel captures how real visitors behave on a site (dead clicks, rage clicks, scroll depth, Core Web Vitals, JavaScript errors, and 50+ other signals) and the engine turns them into prioritized, plain-English findings. This teardown is the outside-in version of that: the same detectors run against a public page, with no pixel installed.

How to read it. Every finding here is a reproducible, automated measurement, not an opinion: element sizes, contrast ratios, load metrics, and structured-data checks that anyone can re-run against the same URL. The method is stated in full above. Automated testing catches a subset of issues, so this is a starting point, not a certification.

Full disclosure. Harvv makes the pixel that would measure the friction these findings imply, so we have a commercial interest. That is exactly why the findings are kept to things a reader can verify independently, and why nothing here is inflated: an unreproducible claim would undermine the tool it is meant to demonstrate.

Prepared by Harvv (harvv.com), a behavioral UX analytics platform. Last updated September 9, 2026.

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See all site teardowns →  ·  Read the industrial web report →

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