Robert Giordano

Welcome to my Linkatopia. I like music, photography, drones, and welding. I'm currently rebuilding this entire site, and adding more cool features. See the blog!



Recent Posts

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Configuring the Viewport

  | Dec 22, 2021

Scripts: async, defer

This is a very simple explanation of defer and async, with examples

  | Nov 4, 2021

Defer non-critical CSS

Some interesting tips and methods here.

  | Nov 4, 2021

Graph database - Wikipedia

Good intro and comparison of SQL and Graph queries

  | Jun 17, 2021

Cumulative Layout Shift (CLS)

This is where a web page changes/updates while you're trying to read it and causes you to lose your place. More stuff to learn how to fix and/or prevent

  | May 31, 2021

Web Vitals

- Largest Contentful Paint
- First Input Delay
- Cumulative Layout Shift

  | May 31, 2021

Emojigraph - Emoji Universe

Emoji codes for Javascript, CSS, etc

  | Feb 22, 2021

Trident User Agents - WhatIsMyBrowser.com

Searchable database of millions of user agents

  | Feb 19, 2021

Python vs Php - Python Wiki

A good overview of the differences and quirks of both

  | Feb 8, 2021

JavaScript Performance in the Wild 2020

Interesting look at protocols, libraries, and other factors that can make one site faster or slower than another

  | Jan 27, 2021

Have the tables turned on NoSQL? - Stack Overflow Blog

Interesting comparison

  | Jan 21, 2021

Switch font color for different backgrounds with CSS | CSS-Tricks

This is brilliant except it doesn't work in IE or Edge. Why am I even surprised lol

  | Nov 17, 2020

Stateful vs. Stateless Web App Design - API Blog: Everything You Need to Know

This Sept 2020 blog post is trying to sell its own service, but does a decent job of explaining the differences between stateful and stateless web apps.

  | Nov 16, 2020

Jens Segers - A stateless blog with Webmentions

This article describes "webmentions" a W3C recommendation for notifying a url when someone links to it. But what's a "stateless" blog? I saved another article that explains this, lol.

  | Oct 31, 2020

8 Tips on How to Reduce DNS Lookups and Speed Them Up

Mostly stuff for Wordpress but some of it could apply anywhere

  | Oct 15, 2020

Mathematics for programmers (early draft) - Math-for-programmers.pdf

There is some great stuff in here on primes, encryption, probability, auto-complete, etc

  | Sep 25, 2020

How to provide your own in-app install experience

Pete LePage, 2020 article

  | Aug 17, 2020

Add to Home screen - Progressive web apps (PWAs) | MDN

this example is based on Pete LePage's code

  | Aug 17, 2020

Favicon & App Icon Generator

www.favicon-generator.org/

  | Aug 6, 2020

Favicon Generator for perfect icons on all browsers

This might be the best, most up to date one

  | Aug 6, 2020

Cookie Policy - 123RF

  | Jul 2, 2020

Server doesn't boot after upgrading from 10.3 to 11.2 | The FreeBSD Forums

This is my first post on the FreeBSD forums

  | Dec 16, 2018

SVG Rectangle

  | Aug 17, 2018

apache - Redirecting https://www to https://non-www - without seeing certificate

This is an issue if your SSL cert doesn't handle www

  | Jun 20, 2018

CodeMirror

a versatile text editor implemented in JavaScript for the browser

  | Jun 7, 2018

SVG Tutorial

  | Jun 7, 2018

Modal Dialog - JSFiddle

Code for a modal dialog that scrolls

  | Jun 5, 2018

Promo - Online Marketing Video Maker

Take a look at how the video on this page works

  | May 24, 2018

Responsive Web Design Introduction

This is a good example to show people what "responsive" means

  | May 21, 2018

Introduction to ARIA | Web Fundamentals | Google Developers

How to add extra attributes to custom interface items for mobile

  | May 18, 2018

HTML5 Validator

For validating HTML5 .zip files for ads

  | May 14, 2018

php - How to safely display external pictures? - Information Security Stack Exch

One example of how to safely allow users to link images.

  | May 8, 2018

My way to safely display external pictures GitHub

Detailed code from the same author of the previous saved post

  | May 8, 2018

HTTP / HTTPS Header Check

  | May 2, 2018

W3C Link Checker

  | Apr 25, 2018

Pro Tech Toolkit New - iFixit

Look how the video is embedded and loops

  | Apr 5, 2018

Form Inputs: The Browser Support Issue You Didn't Know You Had '" Smashing Magaz

This article lists all the problems with form fields and type="number"

  | May 2, 2017

http://www.godandman.com/wtf

view the source of this page for a look at an interesting effect.

  | Mar 3, 2017

BuiltWith Technology Lookup

Find out what a web site was built with and what cms and other services are being used.

  | Aug 7, 2016

IP2Location' IP-Country-Region-City Database [DB3] | IP2Location.com

There are links at the bottom to free databases

  | Jul 3, 2016

How can I check if a MySQL table exists with PHP? - Stack Overflow

Even though this isn't the accepted answer, it looks like the best:

if(mysql_query("DESCRIBE [table]")) {

  | Jun 14, 2016

Window.open() - Web APIs | MDN

All you ever wanted to know about opening popup browser windows in Javascript.

  | Jun 6, 2016

html - Href attribute for JavaScript links: "#" or "javascript:void(0)"? - Stack

Lengthy discussion of how to write Javascript links

  | Apr 17, 2016

Email Deliverability Best Practice Guides | SendGrid

Lots of info to download!

  | Feb 25, 2016

A Beginner's Guide to HTTP Cache Headers | Mobify

Cache-Control: no-transform,public,max-age=300,s-maxage=900

  | Feb 3, 2016

MySQL :: MySQL 5.5 Reference Manual :: 2.11.1.1 Changes Affecting Upgrades to 5.

Upgrading to MySQL 5.5 from earlier versions

  | Dec 23, 2015

Cookie blocked/not saved in IFRAME in Internet Explorer - Stack Overflow

header('P3P: CP="Potato"'); HAHAHAHAHA!!!!

  | Dec 22, 2015

Tracking Upload Progress with PHP and JavaScript

Requires PHP 5.4+

  | Dec 6, 2015

Matthew Kenney Cuisine: Crafting the Future of Food

Look at the features of this site

  | Nov 11, 2015

HTML5 Geolocation

  | Nov 9, 2015

Virtual Machine (VM), Windows Virtual PC & BrowserStack : Microsoft Edge Dev

Download virtual machines to test various versions of Internet Exploder

  | Sep 8, 2015

How do I get a YouTube video thumbnail from the YouTube API?

http://img.youtube.com/vi/[video id]/mqdefault.jpg

  | Jun 9, 2014

W3Counter - Global Web Stats

Global browser, operating system, and screen resolution statistics

  | Feb 2, 2014

.htaccess tricks and tips.. part two: url rewriting with mod rewrite.

A really good guide to .htaccess

This guy also has some free code called the "distro machine" for downloading files.

  | Jun 18, 2013

SPF Query Tool

  | Nov 9, 2012

SPF: FAQ/Common mistakes

  | Nov 9, 2012

Everything you always wanted to know about touch icons Mathias Bynens

Fairly comprehensive article on touch icons.

  | Sep 21, 2012

Google Insights for Search

  | Dec 13, 2011

USPS - Web Tools Registration Web Page

For calculating shipping rates from a shopping cart

  | Jun 5, 2011

USPS - Web Tools Technical Guides

All of the various technical guides in PDF format

  | Jun 5, 2011

The Apache Cassandra Project

The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.

  | Dec 28, 2010

Panic - Coda - One-Window Web Development for Mac OS X

Coda, One window web development.*

  | Nov 22, 2010

iPhoney - Free iPhone web simulator

works great on my macbook! Unfortunately it just acts like the Safari browser and not exactly like the iphone. I have some sites that work great in iPhoney but have some issues on the iPhone. Guess I need Apple's official SDK

  | Mar 6, 2008

Ultimate Web Development Cheat Sheet Guide

Javascript, CSS, XHTML, AJAX (The list includes the Design215 CSS Quick Reference!)

  | Feb 26, 2008

Cheat Sheets - ILoveJackDaniels.com

A bunch of nice cheat sheets and quick reference charts in PDF format.

  | Feb 26, 2008

Scott Klarr >> Cheat Sheets

A comprehensive collection of cheat sheets for almost all web dev categories.

  | Feb 26, 2008


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