flysfo.com

https://flysfo.com· First analyzed 25 Apr 2026· Updated 25 Apr 2026

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flysfo.com

Mobile

Sponsored

Hosting Provider

Pantheon

IP Address

151.101.130.133

Site Location

🇺🇸 United Statesvia phone

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Nginx

CDN

Fastly

Nameservers

dns3.p06.nsone.net.dns4.p06.nsone.net.edns7.ultradns.biz.edns7.ultradns.com.+4 more

Performance

100

Core Web Vitals

Weight

First Contentful Paint

431 ms10%

Speed Index

560 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.5 MB

106 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

13 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel FullStory

Libraries

UI Components

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Advertising

Other

Web Servers

SEO Analysis

C65/100

Meta Tags9/15

Content10/12

Headings3/8

Technical20/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social2/5

Freshness0/4

Mobile4/4

Indexability3/3

flysfo.comflysfo.com

Home Page | San Francisco International Airport

No description available for this page.

Title Length47 chars

Recommended: 50-60 chars (~281px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

10 issues found

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Crawlability

Sitemap

Type: index

8 URLs

8 sub-sitemaps

robots.txt

53 rules

Sitemap reference found

Local SEO

Local Search Readiness

32/100

Needs Work

9 10 1

Sponsored

AI & LLM Readiness

D42/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

1/25

Citation

13/25

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:3%

Words:1,618

Token eff.:Optimal

Depth:1/5

Structured Data

1 JSON-LD

sameAs entity links

Citation Readiness

Opening Summary661w

Descriptive Headingsavg 7.6w

Canonical URL

Open Graph0/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

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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.

84/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

12/15

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

11/15

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.

46/100

190 mg

CO₂e / view

1.5 MB

Page Weight

60%

Cleaner Than

New Visitor

218 mg

Returning (cached)

109 mg

Annual (10K/mo)

22.8 kg

Emission Segments

Data Center

43 mg

Network

46 mg

Device

102 mg

Resource Breakdown

JavaScript

393.1 KB

Images

676.1 KB

CSS

432.3 KB

HTML

36.4 KB

Other

847 B

Green Hosting Not Verified

Pantheon

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

56%Poor

Interactive

HTTPS

No WAF

11d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Certainly

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

07.04.2026

Valid Until

07.05.2026

Subject Alternative Names (1)

www.flysfo.com

SHA-256 Fingerprint

10:8F:AF:86:D2:1A:83:80:C8:A0:63:E2:ED:11:09:D7:DB:1C:B1:32...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

cache-control

🟡 300s(max-age=300, public)

content-encoding

📦 Gzip(gzip)

content-language

content-length

36930

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

flysfo-com.mail.protection.outlook.com

Domain Information

flysfo.com

Domain Age

27y 3m

Created

28.01.1999

Expires

28.01.2030

Last Updated

28.08.2025

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

TrustArc

Cookie Consent Banner

TrustArc

GDPR Indicators

Cookie consent banner detected

CMP: TrustArc

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.

79/100

Mobile Friendly17 breakpoints

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Montserrat + Arial

WCAG Partial

69/100

Readability

/30

23/30

16px · LH 1.50

Hierarchy

/20

8/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

Montserrat

Sans

Body Font

Arial

Sans16px

Contrast Ratio

1:1

18 issues

Reading Comfort

~36 CPL

Narrow lines

40px

28px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 29/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 18 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Buy on MyFontsFlesch 29

Color Palette

14 unique colors

5.35:1 AA Light

#ffffff

Background· 18.5%

#756865

Other· 7.2%

#2067ae

Primary· 10.2%

#021747

Accent· 9.2%

#4c3f51

Secondary· 8%

#2b449d

Accent· 7.4%

#628fbb

Secondary· 7.4%

#bfbdd1

Secondary· 6.5%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

TrustArcEnterprise

Cookie consent and privacy compliance tools

A/B Testing & Optimization

OptimizelyEnterprise

Experimentation and conversion optimization

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)googletagmanager.com(3)connect.facebook.net(2)beacon.sojern.com(2)consent.trustarc.com(1)

Website Identity

San Francisco International Airport

Airport

SFO offers nonstop flights to Asia, South Pacific, Europe, Canada, Mexico, and the US; world-class facilities, shopping, dining and more!

+1-650-821-8211

www.flysfo.com

27 years old

Location detected: 🇺🇸 United Statesvia phone

Network Solutions, LLC📧 Microsoft 365en

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube Threads Bluesky

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Last analyzed: 25 Apr 2026 at 22:17

Historical Analysis & Change Tracking