Site teardown · Phillips66
phillips66.com
Site health · August 16, 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.

August 16, 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.

0.6s

Speed is good.

0

No JavaScript errors on load.

100/100

Lighthouse scores SEO 100/100. 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.

faint

Some text is low-contrast and hard to read

41%

Add quotations so AI engines cite this page

25560KB

Page is heavy and slow on mobile data

8

Duplicate title tags

31/33

Images have no width or height set (layout is stable for now)

180

Security headers are missing or weak

Fixing next
page weight, duplicate title and image sizes.

3 small changes, on the pages people actually land on: Page is heavy and slow on mobile data; Duplicate title tags; Images have no width or height set (layout is stable for now). We re-measure the same samples after.

4
hours
AI search visibility
How visible is phillips66.com to AI search?
ChatGPT, Perplexity, and Google AI Overviews are the new front page. The AI checks in this report are a preview. A free account turns them into a live 0 to 100 score, tracked daily and benchmarked against your competitors.
See the full AI report, free

This is one of several oil refiner sites we tore down the same way. The same friction repeats on Par Pacific, and we pulled the cross-site pattern together in the oil-refiner web benchmark.

01Findings, ranked by what hurts conversion most

SeverityFindingHow we know
HighSome text is low-contrast and hard to readBothAccessibility (WCAG)
Text that does not stand out enough from its background is hard to read for many visitors, and fails accessibility guidelines Google checks.
paste into Claude, Cursor, or ChatGPT
HighAdd quotations so AI engines cite this pageBothAI SearchSEO
Generative engines (ChatGPT, Perplexity, AI Overviews) lift sourced, attributed quotes almost verbatim, and quotations are the single strongest citation lever (studies measure roughly +41%). Add 1-2 attributed expert quotes or blockquotes to the pages below. (Found across a sample of 8 pages from your sitemap, a partial crawl rather than your full site.)
paste into Claude, Cursor, or ChatGPT
MediumPage is heavy and slow on mobile dataBothPerformance
Each visit downloads about 36.3 megabytes, roughly 25560 KB of images and 271 KB of JavaScript across 70 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
MediumDuplicate title tagsBothSEO
The same <title> appears on multiple pages. Duplicate titles confuse search engines about which page to rank and split relevance between them. (Found across a sample of 8 pages from your sitemap, a partial crawl rather than your full site.)
The exact examples we found:
  • "phillips 66 latest news and company stories" (7 pages)
paste into Claude, Cursor, or ChatGPT
LowImages have no width or height set (layout is stable for now)BothPerformanceSEO
31 of 33 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
LowSecurity headers are missing or weakBothSecurity
The server response is missing browser-hardening headers that protect visitors and are a standard security and agency checklist item. Missing or weak here: Content-Security-Policy (the main defense against injected and cross-site scripts); a stronger HSTS policy (max-age at least 180 days plus includeSubDomains). These are set at the server, CDN, or host level (most platforms expose them in settings or a config file) and do not change how the site looks or performs.
paste into Claude, Cursor, or ChatGPT
LowSome text is too small to read on phonesMobileAccessibility (WCAG)Conversion
61 chunks of text come in under 12 pixels on this page. Most visitors don't zoom, they just skim past anything that small. Bumping the smallest body text to 14 pixels makes the page read without effort.
paste into Claude, Cursor, or ChatGPT
median across loads
LowNo advertising pixel detectedBothTracking
Analytics is present but no Meta/Google/TikTok ad pixel was found. If you run paid ads, conversion tracking should be installed before the next campaign so the platforms can optimize toward buyers, not clicks.
paste into Claude, Cursor, or ChatGPT
LowNo email capture or newsletter detectedBothConversion
No email-marketing tag (Klaviyo, Mailchimp, etc.) was found. 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
LowNo visible contact details (email or phone)BothConversion
The page exposes no email or phone link. For higher-value or trust-sensitive purchases, a clear way to reach a human reduces hesitation. Add an email or phone link in the header or footer.
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 133 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 18 KiB.
paste into Claude, Cursor, or ChatGPT
LowNo llms.txt fileBothSEO
No /llms.txt. This emerging standard gives AI search engines a clean, structured map of your most important content, improving how they understand and cite your site.
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.

Structural and AI-search checks crawl up to 8 pages from your sitemap (a sample, not your full site). "Broken" means a link returned 404, 410, or 5xx, or did not respond; access-controlled pages (401, 403) are not counted.

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://phillips66.com, run August 16, 2026. 13 issues were found. I want them fixed.

## Context
- Site: https://phillips66.com
- Mobile LCP (lab median): 582 ms
- Desktop LCP (lab median): 576 ms
- Page weight (median): 36.3 MB
- Tap targets under 44px: 8% (10 of 123)
- Evidence base: 4 mobile + 2 desktop loads

## Already working, do not change these
- Speed is good: The main content paints in about 0.6s 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 100/100. 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] 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.

### 2. [HIGH] Add quotations so AI engines cite this page
Category: AI Search, SEO
Why it matters: Generative engines (ChatGPT, Perplexity, AI Overviews) lift sourced, attributed quotes almost verbatim, and quotations are the single strongest citation lever (studies measure roughly +41%). Add 1-2 attributed expert quotes or blockquotes to the pages below. (Found across a sample of 8 pages from your sitemap, a partial crawl rather than your full site.)

### 3. [MEDIUM] Page is heavy and slow on mobile data
Category: Performance
Why it matters: Each visit downloads about 36.3 megabytes, roughly 25560 KB of images and 271 KB of JavaScript across 70 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

### 4. [MEDIUM] Duplicate title tags
Category: SEO
Why it matters: The same <title> appears on multiple pages. Duplicate titles confuse search engines about which page to rank and split relevance between them. (Found across a sample of 8 pages from your sitemap, a partial crawl rather than your full site.)
Exact examples found: "phillips 66 latest news and company stories" (7 pages)

### 5. [LOW] Images have no width or height set (layout is stable for now)
Category: Performance, SEO
Why it matters: 31 of 33 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: BAYWAYSTILLS0339.jpeg, 23-0018-HoustonZoo%20%2833%20of%2037%29.jpeg, jg-0401.jpeg, 1112_01A0811.jpeg, BAYWAYSTILLS0165.jpeg, Phillips66-LondonOffice00123.jpeg

### 6. [LOW] Security headers are missing or weak
Category: Security
Why it matters: The server response is missing browser-hardening headers that protect visitors and are a standard security and agency checklist item. Missing or weak here: Content-Security-Policy (the main defense against injected and cross-site scripts); a stronger HSTS policy (max-age at least 180 days plus includeSubDomains). These are set at the server, CDN, or host level (most platforms expose them in settings or a config file) and do not change how the site looks or performs.

### 7. [LOW] Some text is too small to read on phones
Affects: mobile only
Category: Accessibility (WCAG), Conversion
Why it matters: 61 chunks of text come in under 12 pixels on this page. Most visitors don't zoom, they just skim past anything that small. Bumping the smallest body text to 14 pixels makes the page read without effort.
How we know: median across loads

### 8. [LOW] No advertising pixel detected
Category: Tracking
Why it matters: Analytics is present but no Meta/Google/TikTok ad pixel was found. If you run paid ads, conversion tracking should be installed before the next campaign so the platforms can optimize toward buyers, not clicks.

### 9. [LOW] No email capture or newsletter detected
Category: Conversion
Why it matters: No email-marketing tag (Klaviyo, Mailchimp, etc.) was found. 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.

### 10. [LOW] No visible contact details (email or phone)
Category: Conversion
Why it matters: The page exposes no email or phone link. For higher-value or trust-sensitive purchases, a clear way to reach a human reduces hesitation. Add an email or phone link in the header or footer.

### 11. [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 133 KiB.

### 12. [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 18 KiB.

### 13. [LOW] No llms.txt file
Category: SEO
Why it matters: No /llms.txt. This emerging standard gives AI search engines a clean, structured map of your most important content, improving how they understand and cite your site.

## 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.
13 findings, ready to paste

02Performance: phone, desktop, and real visitors

MetricMobileDesktopRead
TTFB (lab median)185 ms190 msLab
FCP (lab median)312 ms350 msLab
LCP (lab median)582 ms576 msGood
Page weight (median)36.3 MB36.3 MBWatch

Google Lighthouse (lab): Performance 62 mobile / 65 desktop, SEO 100, Accessibility 88, Best Practices 100.

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

10 of 123 tappable items on this page come in below 44×44 pixels, the size Apple and Google both recommend for reliable tapping on a phone. 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:

  • button 16x16 "Search"
  • button 16x16 "Menu"
  • a 231x15 "CULTURE AND SOCIAL IMPACT"
  • a 90x15 "MIDSTREAM"
  • a 263x15 "FUELS, LUBRICANTS & CHEMICAL"
  • a 73x15 "REFINING"
  • button 114x18 "Cookies Settings"
  • a 276x15 "Phillips 66 Internet and App"

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
TitleLeader in Energy Solutions | Phillips 66 (40 chars)
Meta description108 chars
H11 on page
CanonicalPresent
Structured data (JSON-LD)WebPage
Open GraphTitle + image

05The fix checklist

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

  1. Page is heavy and slow on mobile dataBothSmall
  2. Images have no width or height set (layout is stable for now)BothCSS only
  3. Unused JavaScript is being downloadedBothVaries
  4. Unused CSS is being downloadedBothVaries
  5. No email capture or newsletter detectedBothVaries
  6. No visible contact details (email or phone)BothVaries
  7. Add quotations so AI engines cite this pageBothVaries
  8. No advertising pixel detectedBothDev afternoon
  9. Duplicate title tagsBoth1 line
  10. No llms.txt fileBothVaries
  11. Some text is low-contrast and hard to readBothVaries
  12. Security headers are missing or weakBothVaries
  13. Some text is too small to read on phonesMobileCSS only

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 phillips66.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), August 16, 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 August 16, 2026.

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