200 Top SEO Ranking Factors May 2019

TOP SEO Factors for 2019-5 previous - today - next

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Ahrefs Rank Authority	-0.29	45	18	93 %	11 %
2	Number of Factors Used Diversity	-0.29	198	122	94 %	91 %
3	Variations in HTML Tags Relevancy	-0.28	19699	284	91 %	96 %
4	Term Frequency Relevancy	-0.28	11	6	91 %	95 %
5	Variations in Body Tags Relevancy	-0.27	16860	241	88 %	96 %
6	Variations in Sentences Relevancy	-0.26	3070	60	88 %	95 %
7	Variations in Div Tags Relevancy	-0.26	9638	156	89 %	94 %
8	Ahrefs Referring Class C Addresses Authority	-0.25	1201	47	57 %	17 %
9	Ahrefs Referring IP Addresses Authority	-0.25	2453	69	57 %	17 %
10	Ahrefs Referring Domains Authority	-0.25	18401	223	57 %	17 %
11	Variations in A Tag HREF Attributes Relevancy	-0.24	1782	64	79 %	95 %
12	Variations in H1-H6 Tags Relevancy	-0.24	121	8	81 %	96 %
13	Ahrefs NoFollow Backlinks Authority	-0.24	46370	1311	47 %	16 %
14	Variations in H1, H2, and H3 Tags Relevancy	-0.24	81	7	79 %	95 %
15	Ahrefs Text Backlinks Authority	-0.24	1215707	24857	57 %	16 %
16	Ahrefs Backlinks Authority	-0.24	1216429	24814	58 %	17 %
17	Ahrefs Referring Pages Authority	-0.24	1216428	24814	58 %	17 %
18	Variations in Search Result Link Text Relevancy	-0.24	5	2	86 %	84 %
19	Variations in Search Result Display URL Relevancy	-0.24	5	2	86 %	84 %
20	Variations in A Tags Relevancy	-0.23	1720	34	83 %	96 %
21	Variations in H1 and H2 Tags Relevancy	-0.23	39	5	76 %	94 %
22	Variations in Search Result URL Relevancy	-0.23	6	2	65 %	76 %
23	Variations in P Tags Relevancy	-0.22	1983	33	78 %	93 %
24	Ahrefs Has NoFollow Backlinks Authority	-0.22	1	1	47 %	17 %
25	Variations in Search Result URL Path Relevancy	-0.22	5	2	62 %	76 %
26	Variations in LI Tags Relevancy	-0.22	557	22	79 %	95 %
27	Keywords in pages top 10 most used phrases	-0.22	6	2	69 %	89 %
28	Variations in the Title Tag Relevancy	-0.22	7	2	82 %	82 %
29	Variations in Absolute URLs Relevancy	-0.22	1977	72	78 %	93 %
30	Ahrefs Dofollow Backlinks Authority	-0.22	1177467	23796	50 %	16 %
31	Search Result Number of Site Links Other	-0.22	1	1	2 %	55 %
32	Ahrefs Has Text Backlinks Authority	-0.22	1	1	56 %	17 %
33	Ahrefs Has Backlinks Authority	-0.21	1	1	56 %	17 %
34	Variations in the Canonical URL Relevancy	-0.21	6	2	51 %	82 %
35	Keywords in pages top 5 most used phrases	-0.21	4	2	59 %	88 %
36	Exact Matches in the HTML Tag Relevancy	-0.21	88063	32	36 %	83 %
37	Exact Matches in Body Tag Relevancy	-0.21	2842	15	36 %	86 %
38	Variations in Script Tags Relevancy	-0.2	3292	53	62 %	91 %
39	Exact Matches in Sentences Relevancy	-0.2	7740	6	34 %	81 %
40	Variations in Span Tags Relevancy	-0.2	468	10	59 %	92 %
41	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.2	32	2	48 %	90 %
42	Ahrefs Has Dofollow Backlinks Authority	-0.2	1	1	49 %	16 %
43	Variations in Meta Description Relevancy	-0.2	22	2	62 %	89 %
44	Variations in Search Result Document File Name Relevancy	-0.2	5	2	58 %	72 %
45	Leading Variations in H1-H6 Tags Relevancy	-0.2	47	2	51 %	92 %
46	Variations in H1 Tags Relevancy	-0.2	6	2	66 %	85 %
47	TF/IDF Relevancy	-0.2	2	1	76 %	83 %
48	Variations in First 100 Words Relevancy	-0.2	29	8	74 %	81 %
49	Variations in H2 Tags Relevancy	-0.19	34	3	45 %	93 %
50	Keywords in pages top 3 most used phrases	-0.19	3	1	49 %	86 %
51	Unabridged Word Count Size	-0.19	10281	1687	93 %	82 %
52	Word Count Size	-0.19	6983	1358	93 %	84 %
53	Clean Text Kilobytes Size	-0.19	59	11	91 %	84 %
54	Number of Sentences Size	-0.19	368	64	92 %	84 %
55	Ahrefs Word Count Size	-0.19	5621	1271	67 %	11 %
56	Number of HTML Tags Size	-0.18	4594	1023	95 %	83 %
57	Number of HTTPS Links Authority	-0.18	771	148	88 %	85 %
58	Body Tag Size Kilobytes Size	-0.18	445	119	91 %	87 %
59	Page Size Kilobytes Size	-0.18	734	163	94 %	87 %
60	Exact Matches in H1-H6 Tags Relevancy	-0.18	435	2	26 %	76 %
61	Variations in ALT Attributes Relevancy	-0.18	67	4	34 %	90 %
62	Variations in OpenGraph Title Relevancy	-0.17	4	1	51 %	77 %
63	Leading Variations in Title Tag Relevancy	-0.17	1	1	36 %	76 %
64	Variations in the last 100 words Relevancy	-0.17	20	5	62 %	79 %
65	Ahrefs Image Backlinks	-0.17	515736	6490	22 %	14 %
66	Number of Heading Tags Size	-0.17	73	21	91 %	84 %
67	Number of Links Authority	-0.17	798	165	92 %	82 %
68	Exact Matches in Title Tag Relevancy	-0.17	50	1	25 %	68 %
69	Leading Variations in H1 Tags Relevancy	-0.17	3	1	32 %	79 %
70	Ahrefs Has Image Backlinks Authority	-0.17	1	1	22 %	13 %
71	Variations in H3 Tags Relevancy	-0.17	48	3	33 %	91 %
72	Number of DoFollow Links Authority	-0.17	796	157	92 %	82 %
73	Ahrefs Linked Root Domains Authority	-0.17	23	7	66 %	16 %
74	Number of Internal Links Authority	-0.17	772	146	92 %	81 %
75	Variations in Nav Tags Relevancy	-0.16	1602	19	44 %	84 %
76	Number of P Tags Size	-0.16	358	36	88 %	84 %
77	Exact Matches in A Tags Relevancy	-0.16	6086	4	23 %	73 %
78	Number of Absolute URLs Authority	-0.16	1306	205	93 %	85 %
79	Ahrefs Internal Links Authority	-0.16	202	67	66 %	17 %
80	Ahrefs External Links Authority	-0.16	112	15	61 %	17 %
81	Inline JavaScript Kilobytes Size	-0.16	614	44	89 %	83 %
82	Variations Making Whole Span Tags Relevancy	-0.16	20	1	22 %	84 %
83	Variations in OpenGraph Description Relevancy	-0.16	23	2	45 %	82 %
84	Number of External Links Authority	-0.16	305	21	87 %	79 %
85	Leading Variations in H2 Tags Relevancy	-0.16	24	1	21 %	87 %
86	Variations in Search Result Summary Relevancy	-0.16	29	3	90 %	77 %
87	Number of Images with ALT Text Size	-0.16	149	20	84 %	84 %
88	Number of Images Size	-0.16	176	32	91 %	84 %
89	Search Result Uses HTTPS Other	-0.16	1	1	81 %	78 %
90	Ahrefs Pages Size	-0.15	4	2	67 %	15 %
91	Variations in Summary Tags Relevancy	-0.15	1411	19	48 %	84 %
92	Variations in TITLE Attributes Relevancy	-0.15	107	4	32 %	87 %
93	Exact Matches in H1 Tags Relevancy	-0.15	42	1	20 %	66 %
94	Variations making whole A Tags Relevancy	-0.15	55	2	36 %	85 %
95	Exact Matches in Meta Description Relevancy	-0.15	84	1	17 %	64 %
96	Title Has Best Other	-0.15	1	1	11 %	63 %
97	Title Has Sales Words Other	-0.15	1	1	15 %	69 %
98	Variations in Strong Tags Relevancy	-0.15	35	3	31 %	84 %
99	Title Has Sentiment Words Other	-0.15	1	1	16 %	69 %
100	Number of H2 Tags Size	-0.15	35	6	72 %	84 %
101	Exact Matches in H2 Tags Relevancy	-0.15	137	1	12 %	64 %
102	Variations in Footer Tags Relevancy	-0.15	1033	7	35 %	83 %
103	Variations Making Whole LI Tags Relevancy	-0.15	10	1	28 %	82 %
104	Search Result URL Length Size	-0.15	113	61	94 %	47 %
105	Number of DoFollow External Links Authority	-0.15	117	17	85 %	77 %
106	Keywords in pages most used phrase	-0.15	1	1	26 %	77 %
107	Ahrefs Has External Links Authority	-0.15	1	1	60 %	15 %
108	Variations in I Tags Relevancy	-0.15	73	3	23 %	86 %
109	Number of US Phone Numbers Trust	-0.15	139	8	43 %	77 %
110	Number of H3 Tags Size	-0.15	51	8	67 %	83 %
111	Ahrefs Has Linked Root Domains Authority	-0.15	1	1	66 %	15 %
112	Ahrefs Has Internal Links Authority	-0.14	1	1	65 %	15 %
113	Number of Nofollow Links Authority	-0.14	254	9	38 %	83 %
114	Head Size Kilobytes Size	-0.14	631	41	92 %	83 %
115	Search Result Number of Dirs in Path Other	-0.14	4	2	77 %	58 %
116	Number of Social Accounts Authority	-0.14	30	3	59 %	74 %
117	Variations making whole H1-H6 Tags Relevancy	-0.14	3	1	17 %	78 %
118	Variations in Class Attributes Relevancy	-0.14	2517	11	29 %	80 %
119	Aggressive Variation Density Relevancy	-0.14	32	1	11 %	68 %
120	Variations in Meta Twitter Description Relevancy	-0.14	15	1	29 %	75 %
121	Variations in Section Tags Relevancy	-0.14	754	15	34 %	85 %
122	Variations in Meta Twitter Content Relevancy	-0.14	4	1	32 %	72 %
123	Has MicroData Thumbnail	-0.14	1	1	2 %	12 %
124	Search Result Summary Length Size	-0.14	599	261	94 %	70 %
125	Variations in Article Tags Relevancy	-0.14	928	19	31 %	76 %
126	Ahrefs Redirects Authority	-0.14	42	2	12 %	13 %
127	Leading Variations in H3 Tags Relevancy	-0.14	18	1	15 %	83 %
128	Variations in H4-H6 Tags Relevancy	-0.14	41	2	22 %	84 %
129	Variations in Host Citations Relevancy	-0.14	813	8	13 %	69 %
130	Number of NoFollow External Links Authority	-0.14	223	4	26 %	83 %
131	Variations making whole H1, H2, and H3 Tags Relevancy	-0.14	2	1	15 %	76 %
132	Has Privacy Policy Trust	-0.14	1	1	62 %	75 %
133	Variations in Value Attributes Relevancy	-0.14	217	3	15 %	79 %
134	Search Result Has Schema Other	-0.14	1	1	7 %	60 %
135	Word Count in Meta Description Size	-0.13	125	22	70 %	80 %
136	Percentage of NoFollow Links Authority	-0.13	23	5	36 %	77 %
137	Ahrefs Has Redirects Authority	-0.13	1	1	12 %	12 %
138	Has Canonical URL Authority	-0.13	1	1	65 %	74 %
139	Meta Description Length Size	-0.13	830	132	70 %	79 %
140	Search Result Link Text Has Year Other	-0.13	1	1	8 %	55 %
141	Number of Twitter Accounts Authority	-0.13	18	1	50 %	71 %
142	Variations in OpenGraph Site Name Relevancy	-0.13	2	1	14 %	66 %
143	Search Result Has Rating Other	-0.13	1	1	7 %	57 %
144	Title Has Year Other	-0.13	1	1	8 %	59 %
145	Variations in Label Tags Relevancy	-0.13	21	1	7 %	71 %
146	Number of HREF Lang Tags Size	-0.13	17	2	10 %	75 %
147	Variations in H4 Tags Relevancy	-0.13	32	2	18 %	82 %
148	Number of Facebook Accounts Authority	-0.13	12	1	39 %	74 %
149	Exact Matches in H3 Tags Relevancy	-0.13	184	1	7 %	53 %
150	Variations in ID Attributes Relevancy	-0.13	153	2	12 %	77 %
151	Number of Email Addresses Trust	-0.13	82	3	37 %	72 %
152	Load Time Milliseconds Performance	-0.13	3277375	4763	95 %	65 %
153	Has Terms of Service Trust	-0.13	1	1	43 %	69 %
154	Number of Social Pages Authority	-0.13	43	3	52 %	72 %
155	Flesch Kincaid Reading Ease	-0.13	145	65	94 %	68 %
156	Variations making whole H1 Tags Relevancy	-0.13	2	1	10 %	69 %
157	Inline CSS Kilobytes Size	-0.13	245	28	52 %	80 %
158	Percentage of NoFollow External Links Authority	-0.13	18	3	24 %	78 %
159	Has Meta Description Relevancy	-0.13	1	1	72 %	73 %
160	Number of H4 Tags Size	-0.13	24	5	46 %	77 %
161	Exact Matches in Search Result URL Relevancy	-0.13	1	1	11 %	21 %
162	Variations in Form Tags Relevancy	-0.13	54	1	12 %	72 %
163	Has Rel Next Link Authority	-0.12	1	1	9 %	62 %
164	Number of Videos Technology	-0.12	4	1	11 %	66 %
165	Variations in Search Result URL Host Name Relevancy	-0.12	3	1	6 %	49 %
166	Variations in Search Result URL Domain Name Relevancy	-0.12	3	1	6 %	49 %
167	Has Rel Pagination Authority	-0.12	1	1	9 %	62 %
168	Number of Forms Technology	-0.12	15	3	73 %	73 %
169	Number of YouTube Embeds Technology	-0.12	4	1	10 %	66 %
170	Variations in HTML Comment Tags Relevancy	-0.12	102	4	12 %	76 %
171	Number of Ads Technology	-0.12	15	1	10 %	49 %
172	Percentage of DoFollow External Links Authority	-0.12	35	14	82 %	60 %
173	Is OpenGraph Type Article Technology	-0.12	1	1	35 %	55 %
174	Number of Amazon Ads Technology	-0.12	15	1	10 %	49 %
175	Number of Images without ALT Text Size	-0.12	145	12	75 %	76 %
176	Has OpenGraph Image Relevancy	-0.12	1	1	47 %	67 %
177	Number of YouTube Accounts Technology	-0.12	2	1	16 %	71 %
178	Title Word Count Size	-0.12	15	9	93 %	62 %
179	Percentage of DoFollow Internal Links Authority	-0.12	95	81	90 %	67 %
180	Search Result Link Text Length Size	-0.12	78	57	94 %	66 %
181	Number of Includes Technology	-0.12	63	23	91 %	61 %
182	Variations in Meta Keywords Relevancy	-0.12	355	2	19 %	72 %
183	Exact Matches making whole H1-H6 Tags Relevancy	-0.12	2	1	7 %	52 %
184	Title Has Top Other	-0.12	1	1	4 %	47 %
185	Has US Phone Number Trust	-0.12	1	1	43 %	59 %
186	Number of CSS Includes Technology	-0.12	18	8	87 %	59 %
187	Exact Matches making whole H1, H2, and H3 Tags Relevancy	-0.12	2	1	7 %	52 %
188	Variations in Main Tags Relevancy	-0.12	3955	45	24 %	79 %
189	Variations in Button Tags Relevancy	-0.12	93	1	4 %	62 %
190	Variations Making Whole Strong Tags Relevancy	-0.12	5	1	6 %	71 %
191	Variations in Style Tags Relevancy	-0.12	3816	12	12 %	70 %
192	Number of JavaScript Includes Technology	-0.12	50	16	89 %	63 %
193	Has FavIcon Technology	-0.12	1	1	64 %	63 %
194	Has Meta Twitter Description Authority	-0.12	1	1	35 %	62 %
195	Number of HTML Comments Size	-0.12	946	42	86 %	72 %
196	Percentage of NoFollow Internal Links Authority	-0.12	18	3	25 %	72 %
197	Variations in NAME Attributes Relevancy	-0.12	17	1	5 %	56 %
198	Has Video Technology	-0.12	1	1	11 %	61 %
199	Has MicroData Relevancy	-0.12	1	1	40 %	64 %
200	Has Ads Other	-0.12	1	1	10 %	46 %

Measures 149788 SEO Factors

148066 Built-In SEO Factors

138889 On-page SEO Factors

9177 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2019-5 previous - today - next