DALLAS, TX.- Collectors have access to top-shelf service across any mobile device now that Heritage Auctions, the world's largest collectibles auctioneer, has relaunched its award-winning website HA.com to integrate Responsive Design, the firm announced July 28, 2015. The site provides seamless access to all Heritage online and live auctions from any mobile device. That includes instant research through more than 4.2 million auction records with prices, descriptions, and enlargeable images, industry-leading functionality for live bidding, and online collection tracking and valuation.

"Heritage Auctions invested millions of dollars and spent more than 18 months developing this new update for one reason: our bedrock belief that our clients deserve the very best access to their collections around the clock on whatever device they use," said Heritage Co-Chairman James Halperin. "This relaunch brings the award-winning functionality of HA.com, already the world's most popular and trafficked auction house web site, to more buyers and sellers worldwide."

HA.com resoundingly ranks as the No. 1 website for fine art and high-end collectibles and started 2015 among the top 10,000 U.S. websites, with an ever-increasing number of visits coming from mobile devices such as tablets and smartphones, according to data from Compete.com. Heritage Auctions also reported $356.6 million in online auction sales alone in 2014, and another $191.6 million during the first half of 2015, far outdistancing all of its auction house rivals online.

Now when visitors to HA.com access the site on a smartphone, tablet, or other hand-held device, all images, links and services instantly scale to the size of the screen. Members can seamlessly access individual accounts on My Heritage, including current bids, invoices, want lists, and profile information. The new design makes it easier to watch video lot descriptions, contact experts, and submit photos of items for free auction estimates.

New features give Heritage's 900,000+ online bidder members full control over image close ups and contrast, which can be crucial in discerning details on rare coins and fine art. Scroll-sensitive menus remain accessible in online catalog views and it is now also much easier to share lots via social media. The upgrade is already earning acclaim across the fine art and collectibles hobby.

"As a multi-market buyer (and seller), I'm on numerous auction websites every day. From my viewpoint, the Heritage website is the best collectibles auction website in the world," said David Hall, President of Collectors Universe (NASDAQ: CLCT) and founder of Professional Coin Grading Service (PCGS) and Professional Sports Authenticator (PSA).

In addition to the new design, HA.com members may access accounts by signing in through either Facebook, Google+, Yahoo, or PayPal. Members may also elect to receive text messages on their smartphones when lots they are bidding on, tracking or consigning are coming up for auction.

"As we developed this important update, we kept collector's needs in mind every step of the way," Halperin said. "We take great pride in the fact that no other collectibles site offers this much functionality across every handheld device."