wespiva — Web Spider Validator
Web Spider Validator, short named
wespiva, is a mix of a
Web-Spider (Robot, Crawler)
, which traverses between web pages linked together,
and an XHTML-Validator,
which proofs whether a page contains valid tags, attributes and allowed attribute-values.
The purpose of this tool is to ensure high-quality
xenu's link sleuth
there is a great tool for spidering
and finding dead links, but it does not validate a page.
there is a great validation-tool,
but it only checks a single page,
and is often overloaded and slow.
The solution to overcome these restrictions is wespiva,
which spiders and
in one rush.
This tool assists in the transition of bigger sites to XHTML.
Click here to
(166 kb ZIP-File, 2012-06-29)
In spite of being programmed not to harm any computer, there is a chance of a crash
by accident or programming-error in the application or
one of the .NET-functions used by it.
In order not to be held liable for any negative circumstances resulting
of the usage of this program (like time losses, data loss, wrong reports, etc.),
you may only use the program when accepting the following
- You backup your system regularly
- You will not make me responsible for damages (lost time, crashed computer, etc.),
if the damage is not provoked intentionally.
wespiva runs on Windows with
.NET Framework 4.0
How to run
Just unzip the single file in the zip-archive
and start using it.
Frequently asked questions for wespiva
- Does it run on MONO for Windows?
A special version runs on Mono 2.2, but hangs when resizing the form while wespiva is spidering.
The reason is unknown, possibly Mono has some bugs with Windows.Forms and Multithreading.
If you don't touch the App until the scan is over, all is well.
- Will there be a MONO-Version for Linux/OS-X?
Probably yes—if someone pays for it.
If no one would pay for it, there is no big demand for it.
- How much pages could be checked in one run?
I've used it to check sites with more than 50.000 elements
in less than 15 minutes.
The duration depends mainly on the line-speed
and responsiveness of the page-delivering web server.
- Why Validation?
I'll let others speak here:
Main page with progress log
- easy to use
- easy to install (just a single exe file)
- wespiva could be used in an intranet, no internet needed for validation
- fast (could check over 50.000 elements in less than 15 minutes)
- detects dead links
- finds validation issues
- generates easy to understand reports
generates a sitemap in the
could be called by command-line
for automated periodically checking of a site
- Spidering and validation is done in a background-thread, the GUI stays responsive
- comfortable configuration, for example a grace-period could be set
- can check all pictures found:
- Is the picture compression optimal? You can set desired quality level and minimum savings for to be reported
- Is the picture correct, can it be loaded without any format problems?
- Does the picture contain many metadata, which is possibly an undesired information leak?
runnable from command-line
c:\wespiva.exe "www.wissing.com" "email@example.com"
Not all HTML5 tags and attributes were checked - this is, as HTML5, a permanent work in progress
Sites using the tag
base are not supported.
- Thumbnail of every web-page and graphic resources
- checking of inline-Anchor-Hrefs (like #top)
- Multi-Threading (for other than the GUI)
- robots.txt conformance
- Basic Authentication
- X.509 Certificates
- Integration into our CMS
History / Changes
- 2012-06-29, Cache-setting of pictures is checked, header should contain max-age or expires with at least 48 hours of caching
- 2012-06-28, New:
More HTML5 tags and attributes are checked, some existing checks were refined and extended.
Agile HTML parser as fallback
The parser falls from XML parsing back to an "agile" html mode, in order to check even non-XML conform HTML.
(based on HTML Agility Pack).
- Picture check
After a validation run you can call the new "check images" function.
This checks all pictures found if they are valid.
It checks if these pictures can be compressed further, you can set the quality level and minimal savings.
If a picture contains "many" meta data items, this fact is reported.
- The flickering when adding new lines to the result table is gone.
- wespiva is now compiles for .NET 4.0 instead 3.5
- 2011-06-08, Redirecting corrected, provisional HTML5 support, save/load website url into/from project file
- 2008-12-19, version 0.1.9: robots.txt, parsing error eliminated
Other nice Validators
They are really good, but don't let you check whole sites: