I’ve recently been working on an update/overhaul of both my various websites and the server backend. As part of this process I’ve been trying ot make sure everything is using the latest standards to maximise performance and compatability. One of the best features of recent versions of wordpress is the native support for responsive images — where the imgset=”” attribut eis used to supply alternative sizes of images in a group so the browser can use the most appropriate. In combination with async loading and lazy loading this can make pages load far faster whilst still looking good to all visitors. However css has not adopted these newer features so background images are much trickier to deal with. It can be done though…
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Posts Categorised: Web Technologies
03 ways to run WP-CRON manually
I’ve recently been looking at how best to run wp-cron manually from the system to avoid a performance hit when a visitor loads the site. I’ve so far found 3 different ways to run this. There may be others.
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0Use encrypted SNI in firefox and sync the setting
I’m always looking to keep my internet access as secure as possible. One thing that recent came to light is encrypted SNI. If you don’t know what this is google is your friend. If you want to make use of it in firefox you have to turn it on as it is off by default
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0Responsive background images for websites
I’ve recently been updating my websites and web server and adding a new site (LoveCrete.org). I wanted to have a background image on LoveCrete and realised that of course 1 size doesn’t fit all screens. Here is a summary of what my thinking was and what I did to cater for the numerous screen sizes and orientations.
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0Testing new image compression tools
I’ve been using EWWW image optimiser to compress all of my JPEG ve PNG images on this site for several years. EWWW makes use of OptiPng and PngOut and whilst these are powerful tools there are alternatives out there now that I wanted to test and compare.
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0PHP sendmail failing dmarc
I run a VPS which hosts several domains. Sending mail from these domains has always been tricky. I’ve long used WP SMTP Mail plugin for wordpress to work around this, but I wanted to get a proper fix. After much reading I found a proper solution
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0nginx curves error SSL_CTX_set1_curves_list
I recently ran into an error with a new nginx config that I couldn’t find anywhere on google! Turns out that was because I was reading the font wrongly and substitued a lower case L for a number 1. So if you ended up on this psage because you searched for SSL_CTX_setl_curves_list then try searching again, for SSL_CTX_set1_curves_list.
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0Centos 8
Centos 8 has finally been released and will eventually provide the base for a new hosting platform for us. However it isn’t quite ready as there are a few packages not yet available.
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5BT sport does work on Windows 7
If you have BT sport and try to view it on a Windows 7 PC you will find several warnings and the content may even not play. This is done entirely deliberately by BT (at Microsoft’s behest?) for no technical reasons what-so-ever. You can easily get it working again
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0Optimising WAN MTU for BT Infinity
Since switching from my BT SmartHub to a pfsense router I’ve had a few minor teething problems. One of which has been the squid proxy service causing a problem where I can’t access the BBC website with an error. Whilst I did eventually fix this through a slightly strange method, I encountered a possible source of the problem which was worth fixing on it’s own
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“Hi James I realise it has been a long while, but I just checked this on windows 11 (build 23H2)…”