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Web Dev + WordPress + Security
Tag: xml
17 posts

Bulletproof Sitemap Redirects via .htaccess

Sitemaps have been shown to help search engines and other visitors understand and navigate your website. This tutorial gives you a simple yet powerful .htaccess technique for ensuring that search engines and other visitors can easily find your sitemap files. So even if they are looking for your sitemap in the wrong location, they’ll always be redirected to the actual, existing sitemap for your site. This strategy helps to improve consistency, minimize 404 errors, and save server resources. So it’s […] Continue reading »

Custom OpenSearch for Your Website

I recently added OpenSearch functionality to Perishable Press. Now, OpenSearch-enabled browsers such as Firefox and IE 7 alert users with the option to customize their browser’s built-in search feature with an exclusive OpenSearch-powered search option for Perishable Press. The autodiscovery feature of supportive browsers detects the custom search protocol and enables users to easily add it to their collection of readily available site-specific search options. Now, users may search the entire Perishable Press domain with the click of a button. […] Continue reading »

Content Negotiation for XHTML Documents via PHP and htaccess

In this article, I discuss the different MIME types available for XHTML and explain a method for serving your documents with the optimal MIME type, depending on the capacity of the user agent. Using either htaccess or PHP for content negotiation, we can serve complete, standards-compliant markup for our document’s header information. This is especially helpful when dealing with Internet Explorer while serving a DOCTYPE of XHTML 1.1 along with the recommended XML declaration. According to the RFC standards1 produced […] Continue reading »

An Easy Introduction to Web Feeds

This article will help beginners understand a few “feed” essentials: what they are, how they work, and how to use them.. So you are a little new to the Web. As you surf around, you keep noticing these little orange squares and multicolored boxes placed next to phrases such as these: Continue reading »

Error-Free Feed-Validation Links for Feedburner-Redirected Feeds

Just a quick tip on how to create error-free links to feed validation services for feeds that are redirected through Feedburner. For example, let’s say our site’s main feed is originally located at: Continue reading »

Laser-Focused Feeds and Smarter Feed Management

My current adventure into the fascinating realms of site redesign and optimization has yielded several chunks of fruit related to managing and delivering feed content. One of my primary concerns regarding the overhaul of Perishable Press is streamlined content delivery and rights management. An important area of convergence for these two factors involves the management and delivery of a site’s syndicated content. In this article, I explain the shortcomings of many default feed configurations and present an effective overall strategy […] Continue reading »

What is the Difference Between XHTML 1.0 Strict and XHTML 1.1?

As some of you (e.g., Louis) may have noticed during the recent site redesign, I decided to switch the default doctype from XHTML 1.0 Strict to XHTML 1.1. Just in case you were wondering, XHTML 1.1 is different than XHTML 1.0 in three important ways1: On every element, the lang attribute has been removed in favor of the xml:lang attribute On the a and map elements, the name attribute has been removed in favor of the id attribute The “ruby” […] Continue reading »

How to Add Meta Noindex to Your Feeds

Want to make sure that your feeds are not indexed by Google and other compliant search engines? Add the following code to the channel element of your XML-based (RSS, etc.) feeds: <xhtml:meta xmlns:xhtml=”http://www.w3.org/1999/xhtml” name=”robots” content=”noindex”></xhtml:meta> Here is an example of how I use this tag for Perishable Press feeds (vertical spacing added for emphasis): Continue reading »

New Version of Category LiveBookmarks Plus for WordPress 2.3

CLB+ As many WordPress users now realize, there have been many fundamental changes in the new version of WordPress. The latest version of WordPress — 2.3 — features a considerably revamped database structure, including a complete reorganization and redistribution of the wp_categories table. Unfortunately, such database alterations have rendered inoperable many popular plugins, proving quite unfortunate not only for millions of WordPress users, but also for those of us who donate time, effort, and resources toward the development of freely […] Continue reading »

Bare-Bones HTML/XHTML Document Templates

In this post I have assembled a concise collection of conforming, bare-bones document templates for the following doctypes: Continue reading »

Feed your Image via Atom or RSS

This quick tutorial explains how to add images to both Atom and RSS feeds. Although both formats allow for image-inclusion, feed-reader support for image-display is currently quite limited in most browsers and applications. Hopefully, that will change in the near future.. Continue reading »

Feed Tester

Note to WordPress 2.0.5 users: Everything was working fine on this site before upgrading to WP 2.0.5. After upgrading, apparently, our feeds stopped validating and the BDP RSS Aggregator plugin refused to update our own feeds. After several hours investigating the situation, we determined that the Live Comment Preview plugin was interfering with our feeds validating, while the upgraded WordPress (2.0.5) was responsible for problems with the BDP plugin. Continue reading »

Add RSS Feed Link Icons to WordPress Category Listings

This brief tutorial explains two methods for adding RSS feed link icons to category listings. Let’s say that you have a list of category links, where each link targets a specific category view. Now let’s say that, next to each category link, you would like to provide a icon that links to that particular category’s syndicated feed. So, rather than cluttering up your page with two sets of category links — one for category views and another for category feeds […] Continue reading »

XHTML Document Header Resource

This XHTML header tags resource is a work in progress, perpetually expanding and evolving as new information is obtained, explored, and integrated. Hopefully, you will find it useful in some way. Even better, perhaps you will share any complimentary or critical information concerning the contents of this article. To get a better idea, scroll through the Table of Contents. Continue reading »

Category LiveBookmarks Plus

CLB+ New version of Category LiveBookmarks Plus (CLB+) now available! CLB+ version 2.3.0b enables WordPress 2.3+ users to configure and customize the ultimate set of autodetection feeds, category feeds, category links, and feed links. Features include completely rewritten, optimized code, optional category post counts, and custom RSS-icon links for all category and/or feed links. Overall, the new version is faster and more flexible than ever! Let’s take a quick look.. Continue reading »

Category LiveBookmarks Plugin

CLB+ Enthusiastic Firefox users enjoy the luxury of Live Bookmarks, a feature of Firefox that automatically discovers and updates RSS feeds. Web pages with available feeds are indicated by the orange feed icon located in the browser’s address bar. Clicking the feed icon presents a list of all available feeds for that particular webpage. Users then select which feeds they would like Firefox to bookmark, track, and automatically update. Makes subscribing stupid easy. Very handy indeed. Continue reading »

Welcome
Perishable Press is operated by Jeff Starr, a professional web developer and book author with two decades of experience. Here you will find posts about web development, WordPress, security, and more »
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Thoughts
Take a screenshot with Firefox (no extension required). Open Developer Tools Settings and enable the “Take a screenshot” button. Then click the button :)
Take a screenshot with Chrome (no extension required). Open DevTools, type Cmd + Shift + P, then type screenshot.
After 10 years working on my 2010 iMac, my upgrade finally arrived. Shiny new iMac shipped from Ireland :)
Too much caffeine weirds me out. But I love the taste of coffee. So once in a while I enjoy a small cup of decaf. Hits the spot.
Chris Coyier is a truly awesome person. One of the finest people I've ever worked with. Just #gottasayit
Excel won't open CSV file because SYLK format? Open it with text editor and add an apostrophe ' at the beginning of the file, save changes, done.
Displaying too many social media buttons and links all over the place imho makes you look desperate and frankly kinda sad.
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