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jenner.com

https://jenner.com· First analyzed 06 May 2026· Updated 06 May 2026
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jenner.com
Desktop screenshot of jenner.com
Mobile screenshot of jenner.com
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

54.203.180.53

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Portland, United States

ASN

AS16509

Organization

AWS EC2 (us-west-2)

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-1649.awsdns-14.co.uk.ns-195.awsdns-24.com.ns-575.awsdns-07.net.ns-1466.awsdns-55.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
411 ms10%
Speed Index
534 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
224 KB
48 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Amazon Web Services (AWS)
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

Languages

1
Ruby

SEO Analysis

C68/100
18
6
1
Meta Tags12/15
Content10/12
Headings8/8
Technical16/21
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
J
jenner.comjenner.com

Homepage | Jenner & Block LLP | Law Firm

Jenner & Block LLP: Premier law firm with 500+ lawyers globally. Expertise in litigation, corporate transactions, crisis management, and public policy. Renow...

Description truncated.
Title Length40 chars

Recommended: 50-60 chars (~247px / 580px)

Description Length222 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (16/21) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

21/100
Needs Work
5 13 2

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AI & LLM Readiness

D49/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
3/25
Citation
16/25

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
Text ratio:5%
Words:3,300
Token eff.:Good
Sections/1K:20

Structured Data

3 JSON-LD
WebSite
sameAs entity links

Citation Readiness

Opening Summary26w
Descriptive Headingsavg 13.3w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
A
80/100
13
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
16/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
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
7/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
73/100
A+
23 mg
CO₂e / view
224.4 KB
Page Weight
95%
Cleaner Than
New Visitor
26 mg
vs
Returning (cached)
13 mg
Annual (10K/mo)
2.7 kg
Emission Segments
Data Center
1 mg
Network
7 mg
Device
15 mg
Resource Breakdown
Images
94.6 KB
CSS
60.4 KB
HTML
69.4 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

81%Very Good
Interactive

HTTPS

WAF

61d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

08.04.2026

Valid Until

07.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.jenner.com

SHA-256 Fingerprint

2F:36:BC:8B:52:7E:68:A1:24:71:C3:3F:10:E8:CE:63:18:E9:7F:FA...

Upgrade to view header details

HTTP Headers

Developer Console

age
15
cache-control
🔴 No Cache(private, no-cache, no-store, must-revalidate, pre-check=0, p...)
cf-cache-status
DYNAMIC
cf-ray🇩🇪 Frankfurt
9f7a4f24eabfdbeb-FRA
content-encoding
⚡ Brotli(br)
content-security-policy
default-src 'self' ; script-src 'self' 'unsafe-inline' 'unsa...
Good Warning Issue

Email Infrastructure

Mimecast

Score

70

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

us-smtp-inbound-1.mimecast.com
us-smtp-inbound-2.mimecast.com

Domain Information

jenner.com

Domain Age
30y 2m

Created

13.03.1996

Expires

14.03.2031

Last Updated

14.03.2021

Registrar

Network Solutions, LLC

DNSSEC
Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner
OneTrust
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: OneTrust

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.
B
71/100
Mobile Friendly1 breakpoint
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=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

IBM-Plex-Serif + IBM-Plex-Sans

WCAG AA
64/100
Readability
/30
18/30

18px · LH 1.78

Hierarchy
/20
18/20

5.56x ratio · ✓ H1→H6

WCAG
/25
17/25

4.62:1 min contrast

Performance
/25
11/25

2 fonts · 8 req

Heading Font

IBM-Plex-Serif

Serif100px

Body Font

IBM-Plex-Sans

Sans18px

Contrast Ratio

4.62:1

WCAG AA (≥4.5:1)

Reading Comfort

~36 CPL

Narrow lines
100px
h1
32px
h2
32px
h3
20px
h4
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.6:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 5.6x larger than body text.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFontsFlesch 0

Color Palette

7 unique colors
Light
#ffffff
Background· 36.199999999999996%
#010b16
Accent· 25.3%
#002554
Primary· 0%
#000654
Accent· 18%
#0b72dc
Primary· 10.3%
#24356a
Secondary· 4%
#bcba74
Secondary· 3.9%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
OneTrustEnterprise

Cookie consent and privacy compliance tools

2

Categories

3

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

13 Resources

9
Scripts
4
Styles
2
Async
0
Defer

Top Script Sources

local(5)googletagmanager.com(2)cdn.cookielaw.org(2)

Website Identity

Jenner & Block LLP | Law Firm

Jenner & Block LLP | Law Firm

LegalService

Jenner & Block LLP: Premier law firm with 500+ lawyers globally. Expertise in litigation, corporate transactions, crisis management, and public policy. Renowned for impactful pro bono work and commitment to social justice.

www.jenner.com
30 years old
Location detected: 🇺🇸 United Statesvia ip
Network Solutions, LLC📧 Mimecasten

Social Profiles

LinkedIn

Sponsored

Last analyzed: 06 May 2026 at 19:16

Historical Analysis & Change Tracking