SEO support, how to enable or configure

Hi,

How can I have SEO support for the GD pages.

Have a look at one of the items in GD. I notice there is no meta tags associated to it.
http://harta.net/places/malaysia-1/selangor/sa/developer-property/sp-setia-berhad/

for example with my other blog postings, it has meta, how can I have meta suppport to improve SEO for GD pages ?

<meta property=”og:title” content=”Selangor Smart City & Digital Economy 2018 Kicks Off With A Bang | Harta.Net” />
<meta property=”og:type” content=”website” />
<meta property=”og:url” content=”http://harta.net/2018/09/13/selangor-smart-city-digital-economy-2018-kicks-off-with-a-bang/” />
<meta property=”og:image” content=”http://harta-net.s3.amazonaws.com/uploads/2018/09/selangorsmartcity3.jpg” />
<meta property=”og:site_name” content=”Harta.net” />
<meta property=”og:description” content=”13 September 2018, KL – Asia largest smart city event, the Selangor Smart City & Digital Convention 2018 saw over 200 exhibitors and 8000 attendees at its third iteration of the international convention at MITEC. The nation's first ever National Mayor Smart City Roundtable was officiated by the deputy minister of Housing and Local Government, Raja Kamarul Bahrin Shah Raja Ahmad, ad attended by over 150+ local council mayors and officers in bid to foster openness, knowledge transfer and collaborative opportunities. The roundtable explored the topics of traffic and mobility, communications & connectivity; and smart waste management, bringing with it global and regional experts from UK, China, Indonesia and France, who lead discussions with the local councils to explore existing solutions and fine tune them within a Malaysian context. ” />
<meta name=”twitter:card” content=”summary” />
<meta name=”twitter:title” content=”Selangor Smart City & Digital Economy 2018 Kicks Off With A Bang | Harta.Net” />
<meta name=”twitter:description” content=”13 September 2018, KL – Asia largest smart city event, the Selangor Smart City & Digital Convention 2018 saw over 200 exhibitors and 8000 attendees at its third iteration of the international convention at MITEC. The nation's first ever National Mayor Smart City Roundtable was officiated by the deputy minister of Housing and Local Government, Raja Kamarul Bahrin Shah Raja Ahmad, ad attended by over 150+ local council mayors and officers in bid to foster openness, knowledge transfer and collaborative opportunities. The roundtable explored the topics of traffic and mobility, communications & connectivity; and smart waste management, bringing with it global and regional experts from UK, China, Indonesia and France, who lead discussions with the local councils to explore existing solutions and fine tune them within a Malaysian context. ” />
<meta name=”twitter:image” content=”http://harta-net.s3.amazonaws.com/uploads/2018/09/selangorsmartcity3.jpg” />
<meta itemprop=”image” content=”http://harta-net.s3.amazonaws.com/uploads/2018/09/selangorsmartcity3.jpg” />