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.


Taidot: PHP

Näytä lisää: php price crawler, www see com au, www search com au, www cars com, search australian, car for sale need, australian work search, australian see, php crawler prices, price crawler business, what is a crawler, sale sites, web crawlers, two day, price crawler, for cars sale, crawler, car filter, active filter, car drive, text drive, tracks|, change history, information crawler, originally

Tietoa työnantajasta:
( 2 arvostelua ) Bondi Junction, Australia

Projektin tunnus: #418938

Myönnetty käyttäjälle:


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 3 päivässä
(5 Arvostelua)

9 freelanceria on tarjonnut keskimäärin %project_bid_stats_avg_sub_26% %project_currencyDetails_sign_sub_27% tähän työhön


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

$250 USD 4 päivässä
(245 arvostelua)

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 3 päivässä
(160 arvostelua)

WE are ready,pl check pmb

$200 USD 7 päivässä
(26 arvostelua)

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

$100 USD 2 päivässä
(108 arvostelua)

Lets start

$170 USD 5 päivässä
(12 arvostelua)

Please check PM

$150 USD 4 päivässä
(31 arvostelua)

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

$150 USD 7 päivässä
(3 arvostelua)

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 10 päivässä
(0 arvostelua)