Tools

Security

Free online service performs a deep analysis of the configuration of any SSL web server on the public Internet:

• https://www.ssllabs.com/ssltest/

Generate Content Security Policy header with this online generator:

• https://www.cspisawesome.com

Scan your security headers:

• https://securityheaders.com/

Immuniweb Website Security Test (GDPR, PCI DSS, CSP, Security Headers, Cookies, Third Party)

• https://www.immuniweb.com/websec

Viewing Raw Content Security Policy Headers:

• Use curl: curl -I -X GET https://yoursite.com

Marketing

Test robots.txt:

• https://www.google.com/webmasters/tools/robots-testing-tool

SEO Keyword Explorers:

• https://trends.google.com/trends/?geo=US (free)
• https://neilpatel.com/ubersuggest/ (free)

Reddit, Facebook, Etc.

• Stats on Subreddits - # of subscribers, posts per day, comments per day, etc. per subreddit

Google

• Check if your pages are indexed by google: enter site:yourdomain.com into

Frontend

• https://google-webfonts-helper.herokuapp.com/fonts generates different formats and CSS for Google web fonts (for self-hosting).

• Adding to Chrome's Emulated Devices