Brandfetch's icon's iconSubject Line's icon
Banner
Subject Line's brand icon

Subject Line

@subjectline.com

SubjectLine.com is the #1 ranked FREE email subject line grading tool - with over 15,000,000 Subject Lines tested and over 200,000 marketers who have utilized the industry leading email marketing tools.

subjectline.com

Subject Line's Company Logos

Subject Line's logos

Logo

SVG

Subject Line's logos

Logo

SVG

Subject Line's Brand Colors

Hex Code

Color name

RGB

HSL

CMYK

#FAFF14

Broom

250, 255, 20

61, 100, 54

2, 0, 92, 0

#FF206E

Radical Red

255, 32, 110

339, 100, 56

0, 87, 57, 0

#FFFFFF

White

255, 255, 255

0, 0, 100

0, 0, 0, 0

#0B0F0A

Marshland

11, 15, 10

108, 20, 5

27, 0, 33, 94

About Subject Line

Jay Schwedelson is the face behind SubjectLine. com, the #1 free tool for email marketing. With over 15 million subject lines tested, this tool is a game-changer for marketers.


It provides valuable insights into what will generate increased response rates and improved inbox deliverability. The results are based on an extensive database of 3 billion+ email messages sent and tracked by SubjectLine. com's partners and clients.


SubjectLine. com evaluates over 800 unique rules, ranging from filtering and deliverability issues to marketing and performance concerns. While the tool doesn't guarantee improved performance, it serves as a guide for future testing ideas.


SubjectLine. com is a service provided by Worldata, the industry-leading direct response media agency with over 40 years of experience. If you're ready to up your email marketing game, SubjectLine.


com and Jay Schwedelson are here to help. Check out their free offers and tools, including the Free 2023 Email Marketing Calendar and the podcast called Do This, Not That! For Marketers Only! featuring Jay Schwedelson himself

Read more...

Brand industry

Business and Consumer Services

Marketing and Advertising

Company type

Privately Held

Year founded

2012

Company size

51-200 employees

Related Brands

Tags

Email subject line testing

Inbox deliverability

Email marketing analytics

Direct response media

Email marketing education

  1. Explore

  2. 📊 Business and Consumer Services

  3. Marketing and Advertising

  4. Subject Line

Brandfetch logo
Brandfetch logo

Our mission is to keep every brand on-brand everywhere 👋We're the leading brand data aggregator, simplifying next-level B2B personalization for developers

All services online

SOC2

Top brand categories

📂Browse all categories⭐Browse by featured🏢Browse by industry🌍Browse by region🖥Computers Electronics and Technology🍿Arts and Entertainment💰Finance🍔Food and Drink🏎Vehicles✈️Travel and tourism🛍E-Commerce and Shopping📊Business and Consumer Services📰News and Media🏝Lifestyle💎Luxury💼Jobs and Career🏭Heavy Industry and Engineering🧪Science and Education

For Developers

DevelopersUse casesLogo APIBrand APIBrand Context APIBrand Search APIBrandfetch MCPPricingDocs

Company

HomeFor BrandsPluginsTerms and conditionsPrivacy policyHelp & supportBlogLLMSauth.md

© 2026 Brandfetch, SA. All rights reserved.

Route de la Goille 2, 1073 Savigny, Switzerland

Brandfetch's light symbol

Get a brand page like this

Brandfetch Logo

Overview

Library

Developers / APIList your brand
Banner
Subject Line's brand icon

Subject Line

Unclaimed brand

SubjectLine.com is the #1 ranked FREE email subject line grading tool - with over 15,000,000 Subject Lines tested and over 200,000 marketers who have utilized the industry leading email marketing tools.

subjectline.com

Liking this brand profile? Share this page

For developers

Build with Brand data

Fetch logos, colors, fonts, and company details for 50M+ brands.

AI Workflow

Connect to Brandfetch MCP

Bring brand data into Claude, Cursor, and any other AI assistant.

Subject Line's Company Logos

Subject Line's logos

Logo

SVG

Subject Line's logos

Logo

SVG

Subject Line's Brand Colors

Hex Code

Color name

RGB

HSL

CMYK

#FAFF14

Broom

250, 255, 20

61, 100, 54

2, 0, 92, 0

#FF206E

Radical Red

255, 32, 110

339, 100, 56

0, 87, 57, 0

#FFFFFF

White

255, 255, 255

0, 0, 100

0, 0, 0, 0

#0B0F0A

Marshland

11, 15, 10

108, 20, 5

27, 0, 33, 94

About Subject Line

Jay Schwedelson is the face behind SubjectLine. com, the #1 free tool for email marketing. With over 15 million subject lines tested, this tool is a game-changer for marketers.


It provides valuable insights into what will generate increased response rates and improved inbox deliverability. The results are based on an extensive database of 3 billion+ email messages sent and tracked by SubjectLine. com's partners and clients.


SubjectLine. com evaluates over 800 unique rules, ranging from filtering and deliverability issues to marketing and performance concerns. While the tool doesn't guarantee improved performance, it serves as a guide for future testing ideas.


SubjectLine. com is a service provided by Worldata, the industry-leading direct response media agency with over 40 years of experience. If you're ready to up your email marketing game, SubjectLine.


com and Jay Schwedelson are here to help. Check out their free offers and tools, including the Free 2023 Email Marketing Calendar and the podcast called Do This, Not That! For Marketers Only! featuring Jay Schwedelson himself

Read more...

Brand industry

Business and Consumer Services

Marketing and Advertising

Company type

Privately Held

Year founded

2012

Company size

51-200 employees

Related Brands

Tags

Email subject line testing

Inbox deliverability

Email marketing analytics

Direct response media

Email marketing education

  1. Explore

  2. 📊 Business and Consumer Services

  3. Marketing and Advertising

  4. Subject Line

Brandfetch logo
Brandfetch logo

Our mission is to keep every brand on-brand everywhere 👋We're the leading brand data aggregator, simplifying next-level B2B personalization for developers

All services online

SOC2

Top brand categories

📂Browse all categories⭐Browse by featured🏢Browse by industry🌍Browse by region🖥Computers Electronics and Technology🍿Arts and Entertainment💰Finance🍔Food and Drink🏎Vehicles✈️Travel and tourism🛍E-Commerce and Shopping📊Business and Consumer Services📰News and Media🏝Lifestyle💎Luxury💼Jobs and Career🏭Heavy Industry and Engineering🧪Science and Education

For Developers

DevelopersUse casesLogo APIBrand APIBrand Context APIBrand Search APIBrandfetch MCPPricingDocs

Company

HomeFor BrandsPluginsTerms and conditionsPrivacy policyHelp & supportBlogLLMSauth.md

© 2026 Brandfetch, SA. All rights reserved.

Route de la Goille 2, 1073 Savigny, Switzerland