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Crawler that tracks dates and prices on two sites


I want a crawler that copies all the information from these three "cars for sale" web sites.

[url removed, login to view]

[url removed, login to view]

[url removed, login to view]

I want to add another one later but it is a harder site to work with.

This crawler has to search all of the new cars and all of the used cars at the end of each day (Australian time).

What I want it to do in particular is keep track of

- What date a car is listed

- What date the price changes

- What date any other information changes

- A history of the price

- What date the ad was taken off the site

- A copy of the ad

I need to be able to see the car on one of the above sites, and then come to my site to see the history of the for sale ad. I want to know if the car has been for sale for a long time. And I want to know what the price was originally, and what the price is now, and how long it took for the price to change.

To help do that I want the number of days to appear next to the old price each time the price changes with some text that says "This was the asking price for [number of days] days".

It should also have the total number of days the add has been active next to the listing date.

I am not too familiar with crawlers so do not know what to specify. Feel free to ask questions.

I also want to be able to search on the same criteria, and filter the result the same way as on [url removed, login to view], and also view the pages the same.

I am guessing the crawler will pick that all up automatically.


Fähigkeiten: PHP

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( 2 Bewertungen ) Bondi Junction, Australia

Projekt-ID: #418938

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Hi, I have worked on various crawlers and have expertise writing them in Perl/PHP. I can easily provide you the solution. Regards, Nick

$150 USD in 3 Tagen
(5 Bewertungen)

9 Freelancer bieten im Durchschnitt $166 für diesen Job


We can help in your project, please check PMB to see our related experience.

$250 USD in 4 Tagen
(245 Bewertungen)

I have great experience creating crawlers, it's my favourite type of project. Ready to start right now and finish within 3 days. Please see PMB for examples of my previous works. Best Regards,Zeke

$200 USD in 3 Tagen
(160 Bewertungen)

WE are ready,pl check pmb

$200 USD in 7 Tagen
(26 Bewertungen)

Hi. I am web extractor and this project is just for my best preference. Thx

$100 USD in 2 Tagen
(108 Bewertungen)

Lets start

$170 USD in 5 Tagen
(12 Bewertungen)

Please check PM

$150 USD in 4 Tagen
(31 Bewertungen)

Hello, I'm interested in your project, Please check PMB for more details.

$150 USD in 7 Tagen
(3 Bewertungen)

Hello, I work for a web development company and do some freelance work next to it. This assignment sounds like a nice project which I would be happy to do. Greetings, Playshiva

$125 USD in 10 Tagen
(0 Bewertungen)