WCAG 2.0 checklist

WCAG 2.0 checklist Level A (Beginner) Guideline Summary 1.1.1 – Non-text Content Provide text alternatives for non-text content 1.2.1 – Audio-only and Video-only (Pre-recorded) Provide an alternative to video-only and audio-only content 1.2.2 – Captions (Pre-recorded) Provide captions for videos…

Calculate Query Cache

SELECT FORMAT(((QCACHE_HITS / (Qcache_hits + Qcache_inserts + Qcache_not_cached))*100),2) AS query_cache_hit_rate_percentage, QCACHE_FREE_BLOCKS, QCACHE_FREE_MEMORY, QCACHE_HITS, QCACHE_INSERTS, QCACHE_LOWMEM_PRUNES, QCACHE_NOT_CACHED, QCACHE_QUERIES_IN_CACHE, QCACHE_TOTAL_BLOCKS FROM ( SELECT MAX(IF(VARIABLE_NAME = ‘QCACHE_FREE_BLOCKS’, VARIABLE_VALUE, NULL)) QCACHE_FREE_BLOCKS, MAX(IF(`VARIABLE_NAME` = ‘QCACHE_FREE_MEMORY’, VARIABLE_VALUE, NULL)) QCACHE_FREE_MEMORY, MAX(IF(`VARIABLE_NAME` = ‘QCACHE_HITS’, VARIABLE_VALUE, NULL)) QCACHE_HITS, MAX(IF(`VARIABLE_NAME`…

Resolving Public DNS Server List

This information is largely available online; however, I’ve taken the time to compile a list of the common DNS servers here for your own reference. You can use a command such as Dig to query any of these public DNS servers to…

Enable memcache in WAMP

Download memcache for windows (DLL) from https://pecl.php.net/package/memcache Extract the files (php_memcache.dll & php_memcache.pdb) and put in <drive>\wamp\bin\php\phpx.x.xx\ext Update php.ini file with extension=php_memcache.dll (run test page with phpinfo and check “Loaded Configuration File” for php.ini configuration file ) Run following script…

How to Force detecting the Social Profiles associated with a Website

Using schema.org metadata, it’s easy to associate all of your online profiles – both social and local – with your website in just a few lines of code. There is a simple code to put all your social profies on…

TATA Photon+: Error 638

Trying to connect TATA Photon+ and getting an error – Error 638: The remote server is not responding in a timely fashion OR TATA Photon+ is just showing freeze at connecting device Solve this problem by performing this: On the…