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For 2021 - online Python 3 training - see ((here)).

Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7.
We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.

Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc.
Information request forms, cleaning up spam

We've been discovered! Or rather ... our brochure request form has been discovered, just like the comment submission form to this diary has been discovered, by "spam engines".

These "spam engines" locate web forms, then complete them with information about on line gaming, pharmacutical products, and other goods and services that we're not interested in. They're characterised by including a very high proportion of links - especially in text areas. I believe that they're hoping to find forms that will let them post information onto bulletin boards and other web sites ....

How to deal with this nuisance? I've amended our information request form response script to compare the length of the text entered "raw" with the length of the text entered once "href" tags are stripped out ... and if it shrinks by a third or more, it's probably a spam. It's hard to be sure, so I'm now in a testing phase that simply marks the emails sent by the brochure request system.

Code (In Perl) to accumulate the full and stripped lengths - run on each field of the form

$full_length += length($value);
$value =~ s/<a\s+href[^>]+>/ /ig;
$stripped_length += length($value);

Code that evaluates whether or not the posting is a spam

$spamfactor = $full_length / $stripped_length;
if ($spamfactor > 1.4) {
$extraword = "SPAM";
} else {
$extraword = "OK";
}

Note that I have also initialised the $full_length and $stripped_length variables to 1 not 0, in case anyone (or any automata) submits a blank form
(written 2005-04-05, updated 2006-06-05)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
G909 - Well House Consultants - Spam, Spamming and Spammers
  [259] Responding to spam - (2005-03-27)
  [276] An apology to Mr Boneparte - (2005-04-11)
  [338] OO techniques are hard to teach - (2005-06-06)
  [347] Frightening and from-friend viruses and spams - (2005-06-14)
  [417] Telephone Preference Service - we're registered - (2005-08-17)
  [495] More spam - a success story - (2005-11-13)
  [872] Email metrics - (2006-09-20)
  [1037] Impact Engineering and Backscatter - (2007-01-16)
  [1115] Unexpected visitors to our site - (2007-03-22)
  [1523] Ive just received an email from myself. Should I be worried? - (2008-01-29)
  [1532] Comment spam blocked. Please comment via Forums - (2008-02-05)
  [1763] Co-operating to save, yet we dont - (2008-08-21)
  [1817] Marc Schneider is still having email trouble - (2008-09-30)
  [1978] From spam to mod_alias - finding resources - (2009-01-05)
  [2019] Baby Caleb and Fortune City in your web logs? - (2009-01-31)
  [2177] Preventing forum spam - checks at sign up - (2009-05-12)
  [2179] Offers that I can refuse - (2009-05-12)
  [2276] Who is Marc Schneider of Multilingual Search Engine Optimization Inc - (2009-07-10)
  [2398] Websitemediasolution and a goldfish called Carl Johnson - (2009-09-06)
  [2697] Email metrics and filtering - (2010-03-28)
  [2884] Hotlinked images onto adult material sites - (2010-07-23)
  [3016] The legal considerations of your web presence - revisited - (2010-10-26)
  [3166] Well house is strong - confirmed? - (2011-02-11)
  [3190] What do the following web sites have in common? - (2011-03-03)
  [3316] Twitter Phishing Trips ... and a great new alert service - (2011-06-04)
  [3352] World Trade Register - Certainly NOT worth 2985 Euros. - (2011-07-09)
  [3506] Cold call contacts - preference services and turning off spam sales approaches - (2011-11-03)
  [3661] Keeping forum and blog comments clean - (2012-03-19)
  [3910] Identifying your real customers and keeping them well informed fast - (2012-11-02)
  [3912] Sand to Arabia, Coals to Newcastle or Woodburners to Russia - (2012-11-04)
  [3946] Moving from a warning system to a control system - PHP, forum spammers - (2012-12-07)
  [4135] Introducing your product to Well House Consultants - single, personally tuned email please - (2013-07-08)
  [4315] Welcoming genuine forum posters quickly - but turning away off topic advertisers - (2014-11-16)
  [4520] No cold sales calls please - but delighted to hear from others! - (2015-09-29)

G902 - Well House Consultants - Web site techniques, utility and visibility
  [23] Skills and responsibilities - (2004-08-22)
  [32] Web design platoon - (2004-08-29)
  [98] No more 'Error 404' pages. Something better. - (2004-10-24)
  [109] URLs - a service and not a hurdle - (2004-11-04)
  [117] A case of case - (2004-11-14)
  [142] Colour for access - (2004-12-06)
  [165] Implementing an effective site search engine - (2005-01-01)
  [173] Data Mining - (2005-01-09)
  [179] The hunt for unique words - (2005-01-16)
  [182] Your personal Google ranking - (2005-01-19)
  [197] Allow for peak traffic on your web site - (2005-02-01)
  [202] Searching for numbers - (2005-02-04)
  [222] Who are all these visitors? - (2005-02-20)
  [261] Putting a form online - (2005-03-29)
  [274] Our most popular resources - (2005-04-10)
  [278] Cover all the options - (2005-04-13)
  [284] The Iconish language - (2005-04-19)
  [288] Colour blindness for web developers - (2005-04-22)
  [311] Growth pains - (2005-05-14)
  [314] What language is this written in? - (2005-05-17)
  [320] Ordnance Survey - using a 'Get a map' - (2005-05-22)
  [322] More maps - (2005-05-23)
  [348] Graveyard pages - (2005-06-15)
  [369] CMS - the minefield of Choices - (2005-07-05)
  [376] What brings people to my web site? - (2005-07-13)
  [414] Form Madness - (2005-08-14)
  [492] New Navigation Aid - Launch of My Wellho - (2005-11-11)
  [510] Dynamic Web presence - next generation web site - (2005-11-29)
  [528] Getting favicon to work - avoiding common pitfalls - (2005-12-14)
  [533] Bigger Box Campaign - (2005-12-18)
  [649] Denial of Service ''attack'' - (2006-03-17)
  [658] Keeping the visitors happy and browsing - (2006-03-26)
  [681] Mirroring a dynamic site - (2006-04-12)
  [718] Protecting images from theft - (2006-05-12)
  [732] Where is a web site visitor browsing from - (2006-05-24)
  [757] Horse and Python training - (2006-06-12)
  [767] Finding the language preference of a web site visitor - (2006-06-18)
  [800] Effective web campaign? - (2006-07-12)
  [893] Visibility - (2006-10-14)
  [916] Driving customers away - (2006-11-07)
  [976] Santa at the station - (2006-12-09)
  [994] Training on Cascading Style Sheets - (2006-12-17)
  [1015] Search engine placement - long term strategy and success - (2006-12-30)
  [1029] Our search engine placement is dropping. - (2007-01-11)
  [1055] Above the fold - (2007-01-28)
  [1104] Drawing dynamic graphs in PHP - (2007-03-09)
  [1177] Sorting out for a site map - (2007-05-05)
  [1184] Finding resources - some pointers - (2007-05-13)
  [1186] Two new pages / sites - (2007-05-14)
  [1198] From Web to Web 2 - (2007-05-21)
  [1207] Simple but effective use of mod_rewrite (Apache httpd) - (2007-05-27)
  [1212] What brought YOU to our web site? - (2007-06-01)
  [1237] What proportion of our web traffic is robots? - (2007-06-19)
  [1297] Stuffing content into a web page - easy maintainance - (2007-08-09)
  [1437] Above the fold with First Great Western - (2007-11-19)
  [1494] A time to update pictures - (2008-01-03)
  [1505] Script to present commonly used images - PHP - (2008-01-13)
  [1506] Ongoing Image Copyright Issues, PHP and MySQL solutions - (2008-01-14)
  [1513] Perl, PHP or Python? No - Perl AND PHP AND Python! - (2008-01-20)
  [1534] Where in the world / country is my visitor from? - (2008-02-07)
  [1541] Colour, Composition or Content - (2008-02-16)
  [1554] Online hotel reservations - Melksham, Wiltshire (near Bath) - (2008-02-24)
  [1610] PHP course dot co, dot uk - (2008-04-13)
  [1630] To provide external links, or not? - (2008-05-04)
  [1634] Kiss and Book - (2008-05-07)
  [1653] How do Google Ads work? - (2008-05-25)
  [1711] Rapid growth leads to server move - (2008-07-17)
  [1747] Who is watching you? - (2008-08-10)
  [1756] Ever had One of THOSE mornings? - (2008-08-16)
  [1793] Which country does a search engine think you are located in? - (2008-09-11)
  [1797] I have been working hard but I do not expect you noticed - (2008-09-14)
  [1833] Web Bloopers - good form design - avoiding pitfalls - (2008-10-11)
  [1856] A few of my favourite things - (2008-10-26)
  [1888] Find the link - (2008-11-16)
  [1955] How to avoid duplicating web page maintainance - (2008-12-20)
  [1961] Making our things easier to find - (2008-12-26)
  [1970] Plagarism - who is copying my pages? - (2009-01-02)
  [1982] Cooking bodies and URLs - (2009-01-08)
  [2056] Web Site Loading - experiences and some solutions shared - (2009-02-26)
  [2065] Static mirroring through HTTrack, wget and others - (2009-03-03)
  [2225] How important is a front page ranking on a search engine? - (2009-06-09)
  [2332] Formation, des langages Open Source - (2009-08-09)
  [2333] Formaci[83][c2]ón, de los lenguajes de c[83][c2]ódigo abierto - (2009-08-09)
  [2334] Formazione, Open Source computer lingue - (2009-08-09)
  [2335] Ausbildung, die Open-Source-Sprachen - (2009-08-09)
  [2336] Forma[83][c2]ç[83][c2]ão, Open Source computador l[83][c2]ínguas - (2009-08-09)
  [2337] Opleiding, Open Source computertalen - (2009-08-09)
  [2338] Uddannelse, Open Source computer sprog - (2009-08-09)
  [2339] Oppl[83][c2]æring, Open Source datamaskinen spr[83][c2]åk - (2009-08-09)
  [2340] ldning, Open Source dator spr[83][c2]åk - (2009-08-09)
  [2341] Koulutus, Open Source tietokone kielill[83][c2]ä - (2009-08-09)
  [2389] Writing with our customers words - (2009-09-01)
  [2410] Removal of technical resources from this site - (2009-09-19)
  [2519] Status Page / breaks of service in early December - (2009-11-30)
  [2532] Analysing Google arrivals by country of origin - (2009-12-10)
  [2552] Web site traffic - real users, or just noise? - (2009-12-26)
  [2569] How to run a successful online poll / petition / survey / consultation - (2010-01-10)
  [2668] Is it worth it? - (2010-03-09)
  [2981] How to set up short and meaningfull alternative URLs - (2010-10-02)
  [3022] Retaining web site visitors - reducing the one page wonders - (2010-10-31)
  [3087] Making the most of critical emails - reading behind the scene - (2010-12-16)
  [3149] Looking back at www.wellho.net - (2011-01-28)
  [3197] Finding and diverting image requests from rogue domains - (2011-03-08)
  [3367] Google +1 - what is it? - (2011-07-22)
  [3426] Automed web site testing scripted in Ruby using watir-webdriver - (2011-09-09)
  [3491] Who is knocking at your web site door? Are you well set up to deal with allcomers? - (2011-10-21)
  [3532] Sharing the user experience - designing a form with the customer in mind - (2011-11-29)
  [3554] Learning more about our web site - and learning how to learn about yours - (2011-12-17)
  [3563] How big is a web page these days? Does the size of your pages matter? - (2011-12-26)
  [3589] Promoting a single one of your domains on the search engines - (2012-01-22)
  [3623] Some TestWise examples - helping use Ruby code to check your web site operation - (2012-02-24)
  [3734] QR codes with marketing logos embedded - (2012-05-16)
  [3744] Short Web Addresses for Melksham - (2012-05-30)
  [3745] Legal change - You need to obtain user consent if you use cookies on your website - (2012-06-01)
  [3776] Some traps it's so easy to fall into in designing your web site - (2012-06-23)
  [3896] An email marathon - (2012-10-15)
  [3974] TV show appearance - how does it effect your web site? - (2013-01-13)
  [4001] Helping search engines with appropriate 400 error codes - (2013-02-11)
  [4076] Web site - fully back! - (2013-04-29)
  [4115] More or less back - what happened to our server the other day - (2013-06-14)
  [4136] How do I post automatically from a PHP script to my Twitter account? - (2013-07-10)
  [4239] Facebook marketing - early experiences - (2014-01-19)
  [4376] Well House Consultants, Well House Manor, First Great Western Coffee shop, TransWilts / 2014 web site reports - (2015-01-01)
  [4401] Selecting RECENT and POPULAR news and trends for your web site users - (2015-01-19)
  [4474] Effect on external factors on traffic to our web sites - an update - (2015-04-26)
  [4492] Almost so wrong, but perhaps it's right for some? - (2015-05-11)


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More to programming than just programming
Different course every day
NULL in MySQL
Free parking for short errands in Melksham
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Searching security holes
A beautiful place to live and learn
Business practise, 2005 style
100% Training
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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