What is Search Engine Crawler?

A search engine crawler is a program or automated script that browses the World Wide Web in a methodical manner in order to provide up to date data to the particular search engine. While search engine crawlers go by many different names, such as web spiders and automatic indexers, the job of the search engine crawler is still the same. The process of web crawling involves a set of website URLs that need to be visited, called seeds, and then the search engine crawler visits each web page and identifies all the hyperlinks on the page, adding them to the list of places to crawl. URLs from this list are re-visited occasionally according to the policies in place for the search engine. The policies of the search engine can be different for each search engine, and may be a cautionary action to ensure that some of the pages that have been added to the index before have not become spam.

Search engine crawlers have a hard times crawling the web on occasion because the Internet has three main characteristics that make it harder to continually keep the index up to date. Because of the large volume of web pages on the Internet, the fast pace and frequency of change to the pages, and the addition of dynamic pages, many search engine crawlers have a hard time crawling. These variations produce a massive amount of URLs to crawl, and cause the search engine crawler to prioritize certain web pages and hyperlinks. This prioritization can be summed up in four different search engine crawler policies that are found commonly within all search engines, though they might differ slightly.

The selection policy is the policy that states which pages to download for the crawling.
The re-visit policy type is a policy that indicates to a search engine crawler when to check web pages for changes
The politeness policies are used to inform crawlers as to how to avoid overloading websites to check the URLs
The parallelization policy is a policy which states how to coordinate distributed web crawlers

Search engine crawlers generally not only have a good crawling strategy with the policies that allow it to narrow down and prioritize the web pages that need to be crawled, but also need to have a highly optimized architecture. This architecture is used build high-performance systems for search engines that are capable of downloading hundreds of millions of pages over several weeks. This architecture can be followed easily, but must also be ready for high performance results. In a well formed search engine crawler, the web page is taken from the World Wide Web and put through a multi-threaded downloader. The URLs from this multi-threaded downloader head into a queue, and then pass through a scheduler to prioritize the URLs, finally going through the multi-threaded downloader again so that the text and Meta data ends up in storage.

There are many different professional search engine crawlers available today, such as the Google Crawler, and are used to list the URLs for use in the search engine. Without search engine crawlers, there would be no results for search engine results pages, and new pages would never be listed.

Read What Full Service SEO Clients Say About SEO Firm Brick Marketing

"Brick Marketing is "solid" when it comes to support for SEO marketing advice"

“I had been impressed for a long time with the content that Brick Marketing was sharing in their informative blog posts and articles. I chatted with Nick Stamoulis a couple times and decided that he was the expert I wanted to work with. I have worked with Brick Marketing for about six months and they have helped us resolve several SEO related issues pertaining to our website. Our account rep is always just an email away with answers to any questions I have and suggestions for how we can improve what we’re doing. Brick Marketing is “solid” when it comes to support for SEO marketing advice. I definitely recommend them if you want to feel more secure about how your website is performing in searches and have the confidence that everything being done to improve your rank is white hat and legit.”

– Paul Rarick, Debbiegrattan.com

"highly recommend Brick Marketing to all of my clients"

“After working with many other SEO firms and not being satisfied I finally was introduced to the Brick Marketing President and Founder, Nick Stamoulis. Nick Stamoulis has educated me about SEO and has provided me with a well rounded SEO package, not only does he offer top quality services he also educates his clients and spends the time to explain everything and their SEO pricing is competitive. I will highly recommend Brick Marketing to all of my clients. Brick Marketing is an A+ for SEO services.”

– Mike Cardella, Integrated Computer Services

"traffic has increased over 80% year-over-year"

“When we started working with Brick Marketing, we had just been subjected to a Google algorithm update and our websites both took substantial hits to traffic. Within a few months, Brick has taken both of our websites to pre-algorithm traffic and conversion levels, and for the CallFinder site, the traffic has increased over 80% year-over-year. Their expertise in SEO, responsive design, and content marketing helped us turn the situation around, and we could not be happier with the results we’ve seen in just our first four months of working with them. The team we work with at Brick Marketing is always available for off-the-cuff consultations and are at the ready to provide recommendations and suggestions to improve our site’s appearance and performance. They are truly a hands-on partner, which is immensely valuable to our business.​”

– Jeanne Landau, Director of Marketing www.800response.com | www.mycallfinder.com

"Our keyword rankings have improved and traffic has increased"

“The Brick Marketing team, was critical to ensuring that our new Web site is optimized to drive maximum traffic. Our keyword rankings have improved and traffic has increased thanks to her assistance and advice. In addition, they executed a strategic link building program that helped further increase Web traffic.”

– Lauren LaFronz, Director of Marketing, enChoice, Inc.

"went above and beyond to help us with any SEO issues"

“We hired Brick Marketing to manage our SEO, but they ended up also managing our company blog, social media marketing, helped us launch a pay per click advertising campaign, migrated our website to a new domain and so much more! Our SEO Specialist is always quick to respond whenever we had a question and went above and beyond to help us with any SEO issues.”

– Mory Creighton, CEO, Pinpoint Laser Systems

"Brick Marketing is levels above all others...an integral part of my team"

“I have formed an invaluable marketing partnership with Brick Marketing. Nick Stamoulis and the rest of the Brick Marketing team are professional, timely, thorough and take time to, not only succeed at the tasks, but also educate myself and my team on the strategies in the process. Since my first encounter working with Brick, I’ve changed organizations and have taken them along with me…they are that good! In my experience in working with many outside agencies who over-promise and under-communicate, I can truly state that Brick Marketing is levels above all others and vested in our relationship. They are not just an SEO consultant, but an integral part of my team. I highly recommend Brick Marketing for any company looking to significantly increase search engine competitiveness and internet presence.​”

– Jodi Murphy, Marketing Director EUXmedia

"dependable, professional SEO company"

“Brick Marketing has been a dependable, professional SEO company that has helped us get results. In the last 6 months of using their services, visits to our website have increased by almost 30%. Our dedicated SEO Specialist was pleasant to deal with. Her suggestions for articles and press releases were industry specific. Brick Marketing always answered our phone calls and emails within an hour which made us feel valued as a client. I would recommend Brick Marketing to all businesses to handle their SEO needs.”

– JoAnne Loftus, Archival Designs, Inc.

"superior knowledge of marketing on the internet"

“I have had the good fortune to work with SEO expert Nick Stamoulis and his team at Brick Marketing and it was clear form the get go that Nick had superior knowledge of marketing on the internet. The SEO campaign and technical writing that Brick Marketing provides has been impressive, where in the past we struggled to find the high levels of competence in these two skill sets. Were only just beginning with Brick Marketing and look forward to growing with their expert guidance. Thank you Nick Stamoulis and the Brick Marketing team!”

– Craig Raubenheimer, President, Roan Solutions, Inc.

"Brick Marketing is rock solid and essential in building a strong marketing foundation."

“Brick Marketing is extremely valuable for feedback and advice in many aspects of marketing, not just SEO and I look forward to continuing to work with them over the long term to continually improve our business and increase sales. That’s what it’s all about. Just like their name implies, Brick Marketing is rock solid and essential in building a strong marketing foundation.”

– Jeff Nicholson, President Freely Creative, Inc. / Websticker.com

"Brick Marketing has been a tremendous resource for our business"

“Brick Marketing has been a tremendous resource for our business. Through their expertise with the ever changing world of SEO, our web presence is as strong as ever. Our working relationship with Nick Stamoulis and Danielle Bachini has been outstanding. In collaboration with web designer Chris Roberts, we were also able to develop the perfect responsive website that truly reflects our business. Thank you Brick Marketing!​”

– Ellen Parlee, Parlee Farms

Contact Us about brick marketing Industries We Serve Case Studies

Need Assistance? Please Contact Us Below: